OII 2005 1° Livello Quiz

Q1. Un bollitore d’alluminio contiene $0.50\text{kg}$ d’acqua a $20\text{°C}$, scaldata finché tutta l’acqua diventa vapore a $100\text{°C}$. Quanto calore è necessario per far evaporare completamente l’acqua dopo aver raggiunto i $100\text{°C}$ (calore di vaporizzazione ${\lambda }_v=2.26\times 10^6{\text{J kg}}^{-1}$)? A) $1.67\times 10^5\text{J}$; B) $3.35\times 10^5$; C) $1.13\times 10^6$; D) $1.84\times 10^6$; E) $2.26\times 10^6\text{J}$.

Topic: Thermodynamics Metodi: First Law of Thermodynamics Competenze: Mathematical Modeling Objects: Container Fonte: Testo (PDF) — p.3 Risposta: C · Soluzioni (PDF)

Q1. An aluminium boiler contains $0.50\text{kg}$ water at $20\text{°C}$, heated until all water becomes steam at $100\text{°C}$. How much heat is needed to completely evaporate water after reaching $100\text{°C}$ (vaporization heat ${\lambda }_v=2.26\times 10^6{\text{J kg}}^{-1}$)? A) $1.67\times 10^5\text{J}$; B) $3.35\times 10^5$; C) $1.13\times 10^6$; D) $1.84\times 10^6$; E) $2.26\times 10^6\text{J}$.

Topic: Thermodynamics Metodi: First Law of Thermodynamics Competenze: Mathematical Modeling Objects: Container Fonte: Testo (PDF) — p.3 The Commission has also adopted a number of proposals for the implementation of the ‘European Union’s strategy for the protection of the environment.

Q2. Un oggetto è nel punto X a $60\text{cm}$ da una lente sottile, che ne forma un’immagine reale in Y a $30\text{cm}$ dalla lente. Se l’oggetto viene avvicinato al fuoco $F$, cosa succede all’immagine? A) Si allontana e diventa più piccola; B) si avvicina e diventa più piccola; C) si allontana e diventa più grande; D) si avvicina e diventa più grande; E) si allontana e rimane delle stesse dimensioni.

Topic: Geometric Optics Metodi: Thin Lens & Mirror Equation Competenze: Physical Reasoning Objects: Lens Fonte: Testo (PDF) — p.3 Risposta: C · Soluzioni (PDF)

Q2. An object is in point X at $60\text{cm}$ by a thin lens, which forms a real image in Y at $30\text{cm}$ by the lens. Se l’oggetto viene avvicinato al fuoco $F$, cosa succede all’immagine? (a) It moves away and gets smaller; (b) it moves closer and gets smaller; (c) it moves away and gets bigger; (d) it moves closer and gets bigger; (e) it moves away and remains the same size.

Topic: Geometric Optics Metodi: Thin Lens & Mirror Equation Competenze: Physical Reasoning Objects: Lens Fonte: Testo (PDF) — p.3 Risposta: C · Soluzioni (PDF)

Q3. (Stessa situazione.) Se l’oggetto è alto $3\text{cm}$, quanto è alta l’immagine? A) $0.090\text{m}$; B) $0.060\text{m}$; C) $0.030\text{m}$; D) $0.015\text{m}$; E) $0.010\text{m}$.

Topic: Geometric Optics Metodi: Thin Lens & Mirror Equation Competenze: Mathematical Modeling Objects: Lens Fonte: Testo (PDF) — p.3 Risposta: D · Soluzioni (PDF)

Q3. (Similar situation.) If the object is high $3\text{cm}$, how high is the image? A) $0.090\text{m}$; B) $0.060\text{m}$; C) $0.030\text{m}$; D) $0.015\text{m}$; E) $0.010\text{m}$.

Topic: Geometric Optics Metodi: Thin Lens & Mirror Equation Competenze: Mathematical Modeling Objects: Lens Fonte: Testo (PDF) — p.3 The Commission has also adopted a proposal for a regulation on the protection of the environment and the environment.

Q4. Un oggetto di massa $2\text{kg}$ a $10{\text{m s}}^{-1}$ verso nord subisce un urto perfettamente elastico con un oggetto di $5\text{kg}$ a $4{\text{m s}}^{-1}$ verso sud. La quantità di moto totale del sistema subito dopo l’urto è… A) $0$; B) $20{\text{kg m s}}^{-1}$ verso nord; C) $20$ verso sud; D) $40$ verso nord; E) $40$ verso sud.

Topic: Conservation of Momentum Metodi: Conservation of Momentum Competenze: Mathematical Modeling Objects: Block Fonte: Testo (PDF) — p.3 Risposta: A · Soluzioni (PDF)

Q4. An object of mass $2\text{kg}$ at $10{\text{m s}}^{-1}$ to the north is hit perfectly elastically with an object of $5\text{kg}$ at $4{\text{m s}}^{-1}$ to the south. The total amount of system motion immediately after impact is… (a) $0$; (b) $20{\text{kg m s}}^{-1}$ to the north; (c) $20$ to the south; (d) $40$ to the north; (e) $40$ to the south.

Topic: Conservation of Momentum Metodi: Conservation of Momentum Competenze: Mathematical Modeling Objects: Block Fonte: Testo (PDF) — p.3 The Commission has also adopted a proposal for a regulation on the protection of the environment and the environment.

Q5. In quale figura è rappresentata meglio l’accelerazione della massa di un pendolo semplice che si muove dal punto 1 al punto 5? [Cinque figure A–E con vettori accelerazione lungo l’arco del pendolo.]

Topic: Oscillations & Waves Metodi: Free-Body Diagram, Vector Decomposition Competenze: Diagrammatic Reasoning, Physical Reasoning Objects: Pendulum Fonte: Testo (PDF) — p.3 Risposta: C · Soluzioni (PDF)

Q5. In which figure is the acceleration of mass of a simple pendulum moving from point 1 to point 5 best represented? [Five AE figures with acceleration vectors along the pendulum arc.]

Topic: Oscillations & Waves Metodi: Free-Body Diagram, Vector Decomposition Competenze: Diagrammatic Reasoning, Physical Reasoning Objects: Pendulum Fonte: Testo (PDF) — p.3 The Commission has also adopted a number of proposals for the implementation of the ‘European Union’s strategy for the protection of the environment.

Q6. Un ragazzo di $50\text{kg}$ sulla superficie terrestre esercita sulla Terra una forza di attrazione gravitazionale, in newton, meglio approssimata da… A) $3\times 10^{-5}$; B) $50$; C) $500$; D) $2\times 10^{14}$; E) dati insufficienti.

Topic: Gravitation Metodi: Newton’s Law of Gravitation Competenze: Physical Reasoning Objects: Planet Fonte: Testo (PDF) — p.3 Risposta: C · Soluzioni (PDF)

Q6. A boy of $50\text{kg}$ on the Earth’s surface exerts on the Earth a gravitational attractive force, in newtons, best approximated by… A) $3\times 10^{-5}$; B) $50$; C) $500$; D) $2\times 10^{14}$; E) insufficient data.

Topic: Gravitation Metodi: Newton’s Law of Gravitation Competenze: Physical Reasoning Objects: Planet Fonte: Testo (PDF) — p.3 Risposta: C · Soluzioni (PDF)

Q7. Il grafico riporta la velocità nel tempo di un oggetto di $2.0\text{kg}$ su rotaia orizzontale ad attrito trascurabile. Quanto è lungo il tratto percorso passando dal punto E al punto F? A) $2.0\text{m}$; B) $2.5\text{m}$; C) $3.0\text{m}$; D) $3.6\text{m}$; E) $6.0\text{m}$.

Topic: Newtonian Mechanics Metodi: Kinematic Equations Competenze: Diagrammatic Reasoning, Mathematical Modeling Objects: Block Fonte: Testo (PDF) — p.3 Risposta: C · Soluzioni (PDF)

Q7. The graph shows the time velocity of an object of $2.0\text{kg}$ on a horizontal track with negligible friction. How long is the path stretching from point E to point F? A) $2.0\text{m}$; B) $2.5\text{m}$; C) $3.0\text{m}$; D) $3.6\text{m}$; E) $6.0\text{m}$.

Topic: Newtonian Mechanics Metodi: Kinematic Equations Competenze: Diagrammatic Reasoning, Mathematical Modeling Objects: Block Fonte: Testo (PDF) — p.3 The Commission has also adopted a number of proposals for the implementation of the ‘European Union’s strategy for the protection of the environment.

Q8. (Stesso grafico.) In quale tratto non viene fatto lavoro sull’oggetto? A) AB; B) EF; C) CD; D) DE; E) non viene mai fatto lavoro. [Il tratto a velocità costante.]

Topic: Conservation of Energy Metodi: — Competenze: Physical Reasoning Objects: Block Fonte: Testo (PDF) — p.3 Risposta: D · Soluzioni (PDF)

Q8.** (Graphic summary) In what section is no work done on the object? (a) AB; (b) EF; (c) CD; (d) DE; (e) no work is ever done. [The constant speed stroke.]

Topic: Conservation of Energy Metodi: — Competenze: Physical Reasoning Objects: Block Fonte: Testo (PDF) — p.3 The Commission has also adopted a proposal for a regulation on the protection of the environment and the environment.

Q9. Due blocchi identici sono connessi da una molla di massa trascurabile; il sistema è sospeso al soffitto con una fune, in equilibrio. La fune si rompe. Subito dopo la rottura, l’accelerazione del blocco superiore è… A) $0$; B) $g/2$; C) $g$; D) $\sqrt{2}g$; E) $2g$.

Topic: Newtonian Mechanics Metodi: Free-Body Diagram Competenze: Physical Reasoning Objects: Block, Spring, String Fonte: Testo (PDF) — p.3 Risposta: E · Soluzioni (PDF)

Two identical blocks are connected by a negligible mass spring; the system is suspended from the ceiling by a rope in balance. The rope breaks. As soon as the breakdown, the acceleration of the upper block is… A) $0$; B) $g/2$; C) $g$; D) $\sqrt{2}g$; E) $2g$.

Topic: Newtonian Mechanics Metodi: Free-Body Diagram Competenze: Physical Reasoning Objects: Block, Spring, String Fonte: Testo (PDF) — p.3 The Commission has also adopted a proposal for a Regulation (EC) on the approximation of the laws of the Member States relating to the use of the electricity sector in the electricity sector.

Q10. Un fascio di luce incide dall’aria su un blocco di materiale trasparente. L’angolo di incidenza è $49°$, quello di rifrazione $30°$. La velocità della luce nel materiale (in ${\text{m s}}^{-1}$) è… A) $1.8\times 10^8$; B) $2.0\times 10^8$; C) $2.3\times 10^8$; D) $3.0\times 10^8$; E) $4.5\times 10^8$.

Topic: Geometric Optics Metodi: Snell’s Law Competenze: Mathematical Modeling Objects: — Fonte: Testo (PDF) — p.3 Risposta: B · Soluzioni (PDF)

Q10. A beam of light hits a block of transparent material from the air. The incidence angle is $49°$, the refractive angle $30°$. The speed of light in the material (in ${\text{m s}}^{-1}$) is… A) $1.8\times 10^8$; B) $2.0\times 10^8$; C) $2.3\times 10^8$; D) $3.0\times 10^8$; E) $4.5\times 10^8$.

Topic: Geometric Optics Metodi: Snell’s Law Competenze: Mathematical Modeling Objects: — Fonte: Testo (PDF) — p.3 The Commission has also adopted a proposal for a Regulation (EC) on the common organization of the market in milk and milk products.

Q11. Un recipiente rigido di volume $0.008{\text{m}}^3$ contiene gas perfetto monoatomico. Se gli viene fornito $40\text{J}$ di calore, di quanto aumenta la pressione del gas? A) $5\text{Pa}$; B) $320\text{Pa}$; C) $1600\text{Pa}$; D) $3333\text{Pa}$; E) $5000\text{Pa}$.

Topic: Thermodynamics Metodi: First Law of Thermodynamics, Ideal Gas Law Competenze: Mathematical Modeling Objects: Gas, Container Fonte: Testo (PDF) — p.3 Risposta: D · Soluzioni (PDF)

Q11. Un recipiente rigido di volume $0.008{\text{m}}^3$ contiene gas perfetto monoatomico. If heat is supplied $40\text{J}$, how much does the gas pressure increase? A) $5\text{Pa}$; B) $320\text{Pa}$; C) $1600\text{Pa}$; D) $3333\text{Pa}$; E) $5000\text{Pa}$.

Topic: Thermodynamics Metodi: First Law of Thermodynamics, Ideal Gas Law Competenze: Mathematical Modeling Objects: Gas, Container Fonte: Testo (PDF) — p.3 Risposta: D · Soluzioni (PDF)

Q12. Un circuito ha una batteria e tre lampadine: la 1 in parallelo con la 2, e questo parallelo in serie con la 3. Cosa accade alla luminosità delle altre due se la lampadina 1 si brucia? A) Entrambe più luminose; B) la 2 più luminosa, la 3 invariata; C) la 2 più luminosa, la 3 si indebolisce; D) la 2 si indebolisce, la 3 più luminosa; E) nessuna cambia luminosità.

Topic: Circuits Metodi: Equivalent Circuit Reduction Competenze: Physical Reasoning Objects: Battery, Resistor Fonte: Testo (PDF) — p.5 Risposta: C · Soluzioni (PDF)

A circuit has a battery and three lamps: the 1 parallel to the 2 and this parallel in series with the 3. What happens to the brightness of the other two if the lamp 1 burns? (a) Both are brighter; (b) the 2nd brighter, the 3rd unchanged; (c) the 2nd brighter, the 3rd weakens; (d) the 2nd weakens, the 3rd brightest; (e) no change in brightness.

Topic: Circuits Metodi: Equivalent Circuit Reduction Competenze: Physical Reasoning Objects: Battery, Resistor Fonte: Testo (PDF) — p.5 The Commission has also adopted a number of proposals for the implementation of the ‘European Union’s strategy for the protection of the environment.

Q13. Una barretta caricata negativamente è avvicinata al pomello di un elettroscopio scarico. Quale diagramma rappresenta meglio la distribuzione di carica sull’elettroscopio? [Cinque diagrammi A–E; induzione: cariche positive sul pomello, negative sulle foglie.]

Topic: Electrostatics Metodi: — Competenze: Physical Reasoning, Diagrammatic Reasoning Objects: Rod Fonte: Testo (PDF) — p.5 Risposta: B · Soluzioni (PDF)

A negatively charged bar is approached by the nozzle of a discharge electroscope. Which diagram best represents the charge distribution on the electroscope? [Five AE diagrams; induction: positive loads on the graft, negative loads on the leaves.]

Topic: Electrostatics Metodi: — Competenze: Physical Reasoning, Diagrammatic Reasoning Objects: Rod Fonte: Testo (PDF) — p.5 The Commission has also adopted a proposal for a Regulation (EC) on the common organization of the market in milk and milk products.

Q14. La forza gravitazionale della Terra su un libro in cima al Gran Sasso ($2900\text{m}$ s.l.m.) è $20\text{N}$. Quale sarebbe approssimativamente se il libro fosse a un’altezza doppia (raggio terrestre $R_T=6370\text{km}$)? A) $2.5\text{N}$; B) $5.0\text{N}$; C) $10\text{N}$; D) $20\text{N}$; E) $40\text{N}$.

Topic: Gravitation Metodi: Newton’s Law of Gravitation Competenze: Mathematical Modeling Objects: Planet Fonte: Testo (PDF) — p.3 Risposta: D · Soluzioni (PDF)

Q14. La forza gravitazionale della Terra su un libro in cima al Gran Sasso ($2900\text{m}$ s.l.m.) è $20\text{N}$. What would it be approximately if the book were at a double height (earth radius $R_T=6370\text{km}$)? A) $2.5\text{N}$; B) $5.0\text{N}$; C) $10\text{N}$; D) $20\text{N}$; E) $40\text{N}$.

Topic: Gravitation Metodi: Newton’s Law of Gravitation Competenze: Mathematical Modeling Objects: Planet Fonte: Testo (PDF) — p.3 Risposta: D · Soluzioni (PDF)

Q15. Tre sfere metalliche uguali 1, 2, 3 in contatto; due bacchette di carica opposta e ugual modulo sono poste simmetricamente ai lati. Allontanata la 2, si rimuovono le bacchette e si separano 1 e 3. Poi 2 è messa a contatto con 1 e poi con 3. Alla fine la carica sulla sfera 2 è… A) metà della carica iniziale di 1, stesso segno; B) metà, segno opposto; C) un quarto, segno opposto; D) un quarto, stesso segno; E) zero.

Topic: Electrostatics Metodi: — Competenze: Physical Reasoning, Mathematical Modeling Objects: Conducting Sphere, Rod Fonte: Testo (PDF) — p.5 Risposta: C · Soluzioni (PDF)

Q15. Three metal balls equal to 1, 2, 3 in contact; two opposite and equal-size load rods are placed symmetrically on the sides. When the 2 is removed, remove the sticks and separate 1 and 3. Then 2 is put in contact with 1 and then 3 Finally, the charge on the sphere 2 is… (a) half of the initial load of 1, same sign; (b) half, opposite sign; (c) a quarter, opposite sign; (d) a quarter, same sign; (e) zero.

Topic: Electrostatics Metodi: — Competenze: Physical Reasoning, Mathematical Modeling Objects: Conducting Sphere, Rod Fonte: Testo (PDF) — p.5 The Commission has also adopted a number of proposals for the implementation of the ‘European Union’s strategy for the protection of the environment.

Q16. Un gas monoatomico si espande reversibilmente raddoppiando il volume in modo isotermo, compiendo lavoro $W_i$. Se invece si espande adiabaticamente raddoppiando il volume dalle stesse condizioni iniziali, compie lavoro $W_a$. Quale affermazione è corretta? A) $W_i=W_a$; B) $0=W_i<W_a$; C) $0<W_i<W_a$; D) $0=W_a<W_i$; E) $0<W_a<W_i$.

Topic: Thermodynamics Metodi: Thermodynamic Cycle Analysis Competenze: Physical Reasoning Objects: Gas Fonte: Testo (PDF) — p.3 Risposta: E · Soluzioni (PDF)

A monatomic gas is reversibly expanding by doubling its volume isothermally, performing work $W_i$. If, on the other hand, it expands adiabatically by doubling the volume under the same initial conditions, it works $W_a$. What statement is correct? A) $W_i=W_a$; B) $0=W_i<W_a$; C) $0<W_i<W_a$; D) $0=W_a<W_i$; E) $0<W_a<W_i$.

Topic: Thermodynamics Metodi: Thermodynamic Cycle Analysis Competenze: Physical Reasoning Objects: Gas Fonte: Testo (PDF) — p.3 The Commission has also adopted a proposal for a Regulation (EC) on the approximation of the laws of the Member States relating to the use of the electricity sector in the electricity sector.

Q17. Due blocchi di massa $M$ sono attaccati a due molle identiche di costante $k$, una volta in parallelo (a sinistra) e una in serie (a destra), su piano senza attrito. Il rapporto tra il periodo del blocco in parallelo e quello in serie è… A) $1/2$; B) $1/\sqrt{2}$; C) $1$; D) $\sqrt{2}$; E) $2$.

Topic: Oscillations & Waves Metodi: Simple Harmonic Motion Analysis, Hooke’s Law Competenze: Mathematical Modeling Objects: Block, Spring Fonte: Testo (PDF) — p.3 Risposta: A · Soluzioni (PDF)

Q17. Two mass blocks $M$ are attached to two identical spring of constant $k$, once in parallel (left) and one in series (right), on a flat surface without friction. The ratio between the time of the parallel block and the time of the serial block is… A) $1/2$; B) $1/\sqrt{2}$; C) $1$; D) $\sqrt{2}$; E) $2$.

Topic: Oscillations & Waves Metodi: Simple Harmonic Motion Analysis, Hooke’s Law Competenze: Mathematical Modeling Objects: Block, Spring Fonte: Testo (PDF) — p.3 The Commission has also adopted a proposal for a regulation on the protection of the environment and the environment.

Q18. Un motore ideale assorbe calore da una sorgente calda e ne cede a una fredda. Se il calore ceduto alla sorgente fredda è $3$ volte il lavoro fatto dal motore, il rendimento è… A) $0.25$; B) $0.33$; C) $0.67$; D) $0.9$; E) $1.33$.

Topic: Thermodynamics Metodi: Thermodynamic Cycle Analysis Competenze: Mathematical Modeling Objects: Heat Engine Fonte: Testo (PDF) — p.3 Risposta: A · Soluzioni (PDF)

A suitable engine absorbs heat from a hot source and gives it to a cold one. If the heat transferred to the cold source is $3$ times the work done by the engine, the output is… A) $0.25$; B) $0.33$; C) $0.67$; D) $0.9$; E) $1.33$.

Topic: Thermodynamics Metodi: Thermodynamic Cycle Analysis Competenze: Mathematical Modeling Objects: Heat Engine Fonte: Testo (PDF) — p.3 The Commission has also adopted a proposal for a regulation on the protection of the environment and the environment.

Q19. Un acquario pieno d’acqua ha dimensioni $40\times 50\times 80\text{cm}$; il contenitore ha massa $10\text{kg}$. La massa complessiva da spostare è circa… A) $10.2\text{kg}$; B) $11.6\text{kg}$; C) $26\text{kg}$; D) $170\text{kg}$; E) $330\text{kg}$.

Topic: Fluid Mechanics Metodi: Order-of-Magnitude Estimation Competenze: Estimation & Approximation Objects: Container Fonte: Testo (PDF) — p.3 Risposta: D · Soluzioni (PDF)

Q19. A full tank of water has a size of $40\times 50\times 80\text{cm}$; the container has a mass of $10\text{kg}$. The total mass to be moved is about… A) $10.2\text{kg}$; B) $11.6\text{kg}$; C) $26\text{kg}$; D) $170\text{kg}$; E) $330\text{kg}$.

Topic: Fluid Mechanics Metodi: Order-of-Magnitude Estimation Competenze: Estimation & Approximation Objects: Container Fonte: Testo (PDF) — p.3 The Commission has also adopted a proposal for a regulation on the protection of the environment and the environment.

Q20. Una batteria, un amperometro, tre resistori ($15\Omega$, $20\Omega$, $30\Omega$) e un interruttore formano il circuito in figura. Chiudendo l’interruttore, la d.d.p. ai capi del resistore da $15\Omega$… A) è uguale a quella del resistore da $20\Omega$; B) è il doppio di quella del resistore da $30\Omega$; C) è uguale a quella del resistore da $30\Omega$; D) è la metà di quella del resistore da $30\Omega$; E) nessuna delle precedenti.

Topic: Circuits Metodi: Kirchhoff’s Laws, Equivalent Circuit Reduction Competenze: Mathematical Modeling Objects: Battery, Resistor, Switch Fonte: Testo (PDF) — p.5 Risposta: C · Soluzioni (PDF)

The circuit in the figure is formed by a battery, an ampere meter, three resistors ($15\Omega$, $20\Omega$, $30\Omega$) and a switch. By closing the switch, the D.D.P. the resistor heads from $15\Omega$… (a) is equal to that of the resistor from $20\Omega$; (b) is twice that of the resistor from $30\Omega$; (c) is equal to that of the resistor from $30\Omega$; (d) is half that of the resistor from $30\Omega$; (e) none of the above.

Topic: Circuits Metodi: Kirchhoff’s Laws, Equivalent Circuit Reduction Competenze: Mathematical Modeling Objects: Battery, Resistor, Switch Fonte: Testo (PDF) — p.5 The Commission has also adopted a number of proposals for the implementation of the ‘European Union’s strategy for the protection of the environment.

Q21. Alcuni grafici mostrano la temperatura assoluta di un gas perfetto in funzione dell’energia cinetica media delle particelle. Quale è corretto? [Cinque grafici $T$ vs $⟨E_c⟩$; quello corretto è una retta per l’origine.]

Topic: Kinetic Theory Metodi: Kinetic Theory of Gases Competenze: Diagrammatic Reasoning, Physical Reasoning Objects: Gas Fonte: Testo (PDF) — p.3 Risposta: C · Soluzioni (PDF)

Some graphs show the absolute temperature of a perfect gas as a function of the average kinetic energy of the particles. Which one is correct? [Five graphs $T$ vs $⟨E_c⟩$; the correct one is a straight line for the origin.]

Topic: Kinetic Theory Metodi: Kinetic Theory of Gases Competenze: Diagrammatic Reasoning, Physical Reasoning Objects: Gas Fonte: Testo (PDF) — p.3 The Commission has also adopted a number of proposals for the implementation of the ‘European Union’s strategy for the protection of the environment.

Q22. Tre spire conduttrici coassiali; nella spira centrale scorre una corrente $I$ vista antioraria dall’osservatore mentre la spira si muove a velocità $v$ verso di lui; le spire 1 e 2 sono ferme. L’osservatore vedrà… A) correnti indotte orarie in 1 e 2; B) antiorarie in 1 e 2; C) oraria in 1, antioraria in 2; D) antioraria in 1, oraria in 2; E) antioraria in 1, nessuna in 2.

Topic: Electromagnetic Induction Metodi: Faraday’s Law of Induction, Lenz’s Law Competenze: Physical Reasoning Objects: Coil Fonte: Testo (PDF) — p.5 Risposta: C · Soluzioni (PDF)

Q22. Three coaxial conductive spires; in the central spire a current $I$ is flowing as the spire moves at $v$ speed towards the observer; spires 1 and 2 are stationary. The observer will see… (a) time-induced flows in 1 and 2; (b) time-independent flows in 1 and 2; (c) time-independent flows in 1 and 2; (d) time-independent flows in 1 and 2; (e) time-independent flows in 1 and 2; (e) time-independent flows in 1 and 2; (e) time-independent flows in 1 and 2; (e) time-independent flows in 1 and 2; (e) time-independent flows in 1 and 2; (e) time-independent flows in 1 and 2; (e) time-independent flows in 1 and 2; (e) time-independent flows in 1 and; (e) time-independent flows in 2 and (e) time-independent flows in 1 and no in 2.

Topic: Electromagnetic Induction Metodi: Faraday’s Law of Induction, Lenz’s Law Competenze: Physical Reasoning Objects: Coil Fonte: Testo (PDF) — p.5 The Commission has also adopted a number of proposals for the implementation of the ‘European Union’s strategy for the protection of the environment.

Q23. Una certa quantità di gas perfetto esegue il ciclo reversibile in figura, in cui la trasformazione $BC$ è un’isoterma. Il lavoro sviluppato dal gas in un ciclo è prossimo a… A) $600\text{kJ}$; B) $300\text{kJ}$; C) $0$; D) $-300\text{kJ}$; E) $-600\text{kJ}$.

Grafici T vs energia cinetica media A-E

Ciclo termodinamico reversibile pV

Topic: Thermodynamics Metodi: Thermodynamic Cycle Analysis Competenze: Diagrammatic Reasoning, Mathematical Modeling Objects: Gas Fonte: Testo (PDF) — p.3 Risposta: D · Soluzioni (PDF)

Q23. A certain amount of perfect gas performs the reversible cycle in the figure, where the transformation $BC$ is an isotherm. The work that the gas develops in a cycle is close to… A) $600\text{kJ}$; B) $300\text{kJ}$; C) $0$; D) $-300\text{kJ}$; E) $-600\text{kJ}$.

The following table shows the results of the calculations:

The following table shows the results of the calculation of the energy efficiency of the product:

Topic: Thermodynamics Metodi: Thermodynamic Cycle Analysis Competenze: Diagrammatic Reasoning, Mathematical Modeling Objects: Gas Fonte: Testo (PDF) — p.3 The Commission has also adopted a proposal for a regulation on the protection of the environment and the environment.

Q24. Cinque figure mostrano due blocchi connessi da un filo inestensibile su una carrucola priva di massa e attrito. In quale caso il modulo dell’accelerazione dei due blocchi è maggiore? [Cinque configurazioni A–E con masse diverse.]

Topic: Newtonian Mechanics Metodi: Free-Body Diagram, Newton’s Law of Gravitation Competenze: Diagrammatic Reasoning, Mathematical Modeling Objects: Block, String, Pulley Fonte: Testo (PDF) — p.3 Risposta: A · Soluzioni (PDF)

Five figures show two blocks connected by an unstretchable wire on a massless, frictionless carriage. In which case is the acceleration mode of the two blocks greater? [Five different AE configurations with different masses.]

Topic: Newtonian Mechanics Metodi: Free-Body Diagram, Newton’s Law of Gravitation Competenze: Diagrammatic Reasoning, Mathematical Modeling Objects: Block, String, Pulley Fonte: Testo (PDF) — p.3 The Commission has also adopted a proposal for a regulation on the protection of the environment and the environment.

Q25. Un paracadutista scende a velocità di regime con paracadute chiuso; poi lo apre e raggiunge una nuova velocità di regime molto più bassa. Confrontando le intensità della resistenza dell’aria nelle due situazioni a regime, quale affermazione è corretta? A) Rapporto delle intensità = rapporto delle velocità; B) = inverso del rapporto delle velocità; C) la forza a paracadute aperto dipende dalle dimensioni del paracadute; D) la forza a paracadute chiuso è più intensa; E) le due intensità sono uguali.

Topic: Newtonian Mechanics Metodi: Free-Body Diagram Competenze: Physical Reasoning Objects: — Fonte: Testo (PDF) — p.3 Risposta: E · Soluzioni (PDF)

A parachute descends at a closed-loop speed; then opens it and reaches a new much lower speed. Comparing the intensities of air resistance in the two regime situations, what statement is correct? (a) The intensity ratio = the speed ratio; (b) = the inverse of the speed ratio; (c) the open parachute force depends on the size of the parachute; (d) the closed parachute force is more intense; (e) the two intensities are equal.

Topic: Newtonian Mechanics Metodi: Free-Body Diagram Competenze: Physical Reasoning Objects: — Fonte: Testo (PDF) — p.3 The Commission has also adopted a proposal for a Regulation (EC) on the approximation of the laws of the Member States relating to the use of the electricity sector in the electricity sector.

Q26. Due impulsi si propagano nella stessa direzione e si sovrappongono dando l’impulso mostrato in figura. Quali possono essere gli impulsi iniziali? [Cinque coppie A–E; la somma deve dare il profilo risultante.]

Topic: Oscillations & Waves Metodi: Superposition Principle Competenze: Diagrammatic Reasoning Objects: — Fonte: Testo (PDF) — p.3 Risposta: E · Soluzioni (PDF)

Q26. Two pulses propagate in the same direction and overlap giving the pulse shown in the figure. What can be the initial impulses? [Five pairs of AE; the sum must give the resulting profile.]

Topic: Oscillations & Waves Metodi: Superposition Principle Competenze: Diagrammatic Reasoning Objects: — Fonte: Testo (PDF) — p.3 The Commission has also adopted a proposal for a Regulation (EC) on the approximation of the laws of the Member States relating to the use of the electricity sector in the electricity sector.

Q27. Supponendo che il sodio emetta luce monocromatica di lunghezza d’onda $\lambda =5.89\times 10^{-7}\text{m}$, quanti fotoni al secondo emette una lampada al sodio di potenza luminosa $P=10\text{W}$? A) $3.5\times 10^{19}$; B) $3.0\times 10^{19}$; C) $2.5\times 10^{19}$; D) $2.0\times 10^{19}$; E) $1.5\times 10^{19}{\text{fotoni s}}^{-1}$.

Topic: Modern-Quantum Physics Metodi: Photon Energy Relation Competenze: Mathematical Modeling Objects: Photon Fonte: Testo (PDF) — p.7 Risposta: B · Soluzioni (PDF)

Q27. Assuming sodium emits monochromatic light of wavelength $\lambda =5.89\times 10^{-7}\text{m}$, how many photons per second does a light-powered sodium lamp $P=10\text{W}$ emitted? A) $3.5\times 10^{19}$; B) $3.0\times 10^{19}$; C) $2.5\times 10^{19}$; D) $2.0\times 10^{19}$; E) $1.5\times 10^{19}{\text{fotoni s}}^{-1}$.

Topic: Modern-Quantum Physics Metodi: Photon Energy Relation Competenze: Mathematical Modeling Objects: Photon Fonte: Testo (PDF) — p.7 The Commission has also adopted a proposal for a Regulation (EC) on the common organization of the market in milk and milk products.

Q28. Una massa di $40\text{kg}$ oscilla su binario liscio attaccata a una molla di costante $k=500{\text{N m}}^{-1}$. L’energia totale del sistema oscillante se si parte da $20\text{cm}$ dall’equilibrio è… A) $10\text{J}$; B) $20\text{J}$; C) $50\text{J}$; D) $4000\text{J}$; E) $100000\text{J}$.

Topic: Oscillations & Waves Metodi: Simple Harmonic Motion Analysis, Energy Conservation Method Competenze: Mathematical Modeling Objects: Block, Spring Fonte: Testo (PDF) — p.3 Risposta: A · Soluzioni (PDF)

Q28. A mass of $40\text{kg}$ oscillates on a smooth track attached to a spring of constant $k=500{\text{N m}}^{-1}$. The total energy of the oscillating system if you start from $20\text{cm}$ from the equilibrium is… A) $10\text{J}$; B) $20\text{J}$; C) $50\text{J}$; D) $4000\text{J}$; E) $100000\text{J}$.

Topic: Oscillations & Waves Metodi: Simple Harmonic Motion Analysis, Energy Conservation Method Competenze: Mathematical Modeling Objects: Block, Spring Fonte: Testo (PDF) — p.3 The Commission has also adopted a proposal for a regulation on the protection of the environment and the environment.

Q29. Un calcolo ha fornito un risultato con unità $\text{J}\cdot \text{N}\cdot {\text{W}}^{-1}\cdot {\text{kg}}^{-1}$. Quali unità si ottengono semplificando? A) $\text{s}$; B) $\text{m}$; C) $\text{kg}$; D) ${\text{m}}^2$; E) ${\text{m s}}^{-1}$.

Topic: Order-of-Magnitude Estimation Metodi: Dimensional Analysis Competenze: Unit Conversion Objects: — Fonte: Testo (PDF) — p.7 Risposta: E · Soluzioni (PDF)

Q29. A calculation has yielded a unit $\text{J}\cdot \text{N}\cdot {\text{W}}^{-1}\cdot {\text{kg}}^{-1}$ result. What units are obtained by simplifying? A) $\text{s}$; B) $\text{m}$; C) $\text{kg}$; D) ${\text{m}}^2$; E) ${\text{m s}}^{-1}$.

Topic: Order-of-Magnitude Estimation Metodi: Dimensional Analysis Competenze: Unit Conversion Objects: — Fonte: Testo (PDF) — p.7 The Commission has also adopted a proposal for a Regulation (EC) on the approximation of the laws of the Member States relating to the use of the electricity sector in the electricity sector.

Q30. Il grafico di una forza $F_x(t)$ agente su una particella lungo $x$. Quanto vale l’impulso totale trasmesso? A) $0$; B) $1$; C) $2$; D) $3$; E) $4$ (${\text{kg m s}}^{-1}$).

Topic: Newtonian Mechanics Metodi: Impulse-Momentum Theorem Competenze: Diagrammatic Reasoning, Mathematical Modeling Objects: — Fonte: Testo (PDF) — p.3 Risposta: C · Soluzioni (PDF)

Q30. Il grafico di una forza $F_x(t)$ agente su una particella lungo $x$. How much is the total pulse transmitted? A) $0$; B) $1$; C) $2$; D) $3$; E) $4$ (${\text{kg m s}}^{-1}$).

Topic: Newtonian Mechanics Metodi: Impulse-Momentum Theorem Competenze: Diagrammatic Reasoning, Mathematical Modeling Objects: — Fonte: Testo (PDF) — p.3 Risposta: C · Soluzioni (PDF)

Q31. Un automobilista percorre i primi tre quarti del tragitto a velocità $v$ e il resto a $v/2$. La velocità media complessiva è… A) $0.85v$; B) $0.80v$; C) $0.75v$; D) $0.70v$; E) $0.65v$.

Topic: Newtonian Mechanics Metodi: Kinematic Equations Competenze: Mathematical Modeling Objects: — Fonte: Testo (PDF) — p.3 Risposta: B · Soluzioni (PDF)

Q31. A driver travels the first three quarters of the journey at $v$ and the rest at $v/2$. The overall average speed is… A) $0.85v$; B) $0.80v$; C) $0.75v$; D) $0.70v$; E) $0.65v$.

Topic: Newtonian Mechanics Metodi: Kinematic Equations Competenze: Mathematical Modeling Objects: — Fonte: Testo (PDF) — p.3 The Commission has also adopted a proposal for a Regulation (EC) on the common organization of the market in milk and milk products.

Q32. Due buste di massa trascurabile distano $2\text{m}$; ciascuna contiene $15$ arance uguali. Spostando $10$ arance da una busta all’altra, la forza di attrazione gravitazionale tra le buste… A) aumenta a $3/2$ del valore; B) diminuisce a $2/5$; C) aumenta a $5/3$; D) diminuisce a $5/9$; E) rimane la stessa.

Topic: Gravitation Metodi: Newton’s Law of Gravitation Competenze: Mathematical Modeling Objects: — Fonte: Testo (PDF) — p.3 Risposta: D · Soluzioni (PDF)

Q32. Two envelopes of negligible mass are distant $2\text{m}$; each contains $15$ equal orange. Spostando $10$ arance da una busta all’altra, la forza di attrazione gravitazionale tra le buste… (a) increases to $3/2$ of the value; (b) decreases to $2/5$; (c) increases to $5/3$; (d) decreases to $5/9$; (e) remains the same.

Topic: Gravitation Metodi: Newton’s Law of Gravitation Competenze: Mathematical Modeling Objects: — Fonte: Testo (PDF) — p.3 Risposta: D · Soluzioni (PDF)

Q33. Tre masse $m_1$, $m_2$, $m_3$ sono collegate da fili inestensibili su tavolo e carrucole (masse e attriti delle corde trascurabili). Se il coefficiente d’attrito dinamico tra $m_2$ e il tavolo è $\mu$, l’accelerazione verso l’alto di $m_3$ è… A) $\frac{m_1}{m_1+m_2+m_3}g$; B) $\frac{m_1+\mu m_2}{m_1+m_2+m_3}g$; C) $\frac{\mu (m_1+m_2+m_3)}{m_1-m_2-m_3}g$; D) $\frac{\mu (m_1-m_2-m_3)}{m_1+m_2+m_3}g$; E) $\frac{m_1-\mu m_2-m_3}{m_1+m_2+m_3}g$.

Topic: Newtonian Mechanics Metodi: Free-Body Diagram, Conservation Laws Competenze: Mathematical Modeling Objects: Block, String, Pulley Fonte: Testo (PDF) — p.3 Risposta: E · Soluzioni (PDF)

Q33. Three masses $m_1$, $m_2$, $m_3$ are connected by unstretchable wires on the table and cartridges (masses and friction of the strings negligible). If the dynamic friction coefficient between $m_2$ and the table is $\mu$, the upward acceleration of $m_3$ is… A) $\frac{m_1}{m_1+m_2+m_3}g$; B) $\frac{m_1+\mu m_2}{m_1+m_2+m_3}g$; C) $\frac{\mu (m_1+m_2+m_3)}{m_1-m_2-m_3}g$; D) $\frac{\mu (m_1-m_2-m_3)}{m_1+m_2+m_3}g$; E) $\frac{m_1-\mu m_2-m_3}{m_1+m_2+m_3}g$.

Topic: Newtonian Mechanics Metodi: Free-Body Diagram, Conservation Laws Competenze: Mathematical Modeling Objects: Block, String, Pulley Fonte: Testo (PDF) — p.3 The Commission has also adopted a proposal for a Regulation (EC) on the approximation of the laws of the Member States relating to the use of the electricity sector in the electricity sector.

Q34. Un carrello di massa $m$ a velocità $v$ urta una molla di costante $k$ fissata all’estremità della rotaia (attrito trascurabile). La massima compressione della molla è… A) $v\sqrt{m/k}$; B) $\sqrt{mv/k}$; C) $m{v}^2/(2k)$; D) $mv/k$; E) $mv/(2k)$.

Topic: Conservation of Energy Metodi: Energy Conservation Method, Hooke’s Law Competenze: Mathematical Modeling Objects: Cart, Spring Fonte: Testo (PDF) — p.3 Risposta: A · Soluzioni (PDF)

Q34. A mass cart $m$ at $v$ speed hits a constant spring $k$ fixed at the end of the rail (negligible friction). Maximum compression of the spring is… A) $v\sqrt{m/k}$; B) $\sqrt{mv/k}$; C) $m{v}^2/(2k)$; D) $mv/k$; E) $mv/(2k)$.

Topic: Conservation of Energy Metodi: Energy Conservation Method, Hooke’s Law Competenze: Mathematical Modeling Objects: Cart, Spring Fonte: Testo (PDF) — p.3 The Commission has also adopted a proposal for a regulation on the protection of the environment and the environment.

Q35. In figura uno specchio sferico concavo, con fuoco $F$ e oggetto $O$. In quale dei punti indicati si trova l’immagine? [Punti indicati lungo l’asse; l’immagine dipende dalla posizione di $O$ rispetto a $F$ e $C$.]

Topic: Geometric Optics Metodi: Ray Tracing, Thin Lens & Mirror Equation Competenze: Diagrammatic Reasoning Objects: Mirror Fonte: Testo (PDF) — p.3 Risposta: E · Soluzioni (PDF)

Q35. A concave spherical mirror with fire $F$ and object $O$ is shown. Where is the image located? [Punkts along the axis; the image depends on the position of $O$ with respect to $F$ and $C$.]

Topic: Geometric Optics Metodi: Ray Tracing, Thin Lens & Mirror Equation Competenze: Diagrammatic Reasoning Objects: Mirror Fonte: Testo (PDF) — p.3 The Commission has also adopted a proposal for a Regulation (EC) on the approximation of the laws of the Member States relating to the use of the electricity sector in the electricity sector.

Q36. Una scatola scende lungo un piano inclinato a velocità $v$. Quale è la direzione della forza d’attrito sulla scatola? A) 1; B) 2; C) 3; D) 4; E) 5. [Attrito diretto lungo il piano, opposto al moto, cioè verso l’alto del piano.]

Topic: Newtonian Mechanics Metodi: Free-Body Diagram Competenze: Diagrammatic Reasoning, Physical Reasoning Objects: Block, Inclined Plane Fonte: Testo (PDF) — p.3 Risposta: B · Soluzioni (PDF)

**Q36. ** A box descends along an inclined plane at $v$ speed. What is the direction of the friction force on the box? A) 1; B) 2; C) 3; D) 4; E) 5. [Train straight along the plane, opposite to the motion, that is, upwards from the plane.]

Topic: Newtonian Mechanics Metodi: Free-Body Diagram Competenze: Diagrammatic Reasoning, Physical Reasoning Objects: Block, Inclined Plane Fonte: Testo (PDF) — p.3 The Commission has also adopted a proposal for a Regulation (EC) on the common organization of the market in milk and milk products.

Q37. Una superficie piana indefinita, uniformemente carica con densità superficiale $\sigma$, è intersecata da una sfera di raggio $R$ centrata a distanza $x<R$ dal piano. Il flusso del campo elettrico attraverso la superficie sferica è… A) $\frac{\pi R^2\sigma }{{\epsilon }_0}$; B) $\frac{2\pi R^2\sigma }{{\epsilon }_0}$; C) $\frac{\pi (R-x{)}^2\sigma }{{\epsilon }_0}$; D) $\frac{\pi (R^2-x^2)\sigma }{{\epsilon }_0}$; E) $\frac{2\pi (R^2-x^2)\sigma }{{\epsilon }_0}$.

Distribuzione carica elettroscopio A-E

Tre sfere metalliche a contatto

Circuito con tre resistori e interruttore

Tre spire conduttrici coassiali

Topic: Electrostatics Metodi: Gauss’s Law Competenze: Mathematical Modeling Objects: Sphere Fonte: Testo (PDF) — p.5 Risposta: D · Soluzioni (PDF)

Q37. An indefinite flat surface, uniformly charged with a surface density of $\sigma$, is intersected by a sphere of radius $R$ centred at a distance $x<R$ from the plane. The flow of electric field through the spherical surface is… A) $\frac{\pi R^2\sigma }{{\epsilon }_0}$; B) $\frac{2\pi R^2\sigma }{{\epsilon }_0}$; C) $\frac{\pi (R-x{)}^2\sigma }{{\epsilon }_0}$; D) $\frac{\pi (R^2-x^2)\sigma }{{\epsilon }_0}$; E) $\frac{2\pi (R^2-x^2)\sigma }{{\epsilon }_0}$.

The following shall be added to the list of the following:

The following table shows the results of the calculation of the total weight of the product:

Circuit with three resistors and switch

The following is the list of the types of co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-operative co-owned co-operative co-owned co-operative co-owned co-operative co-owned co-owned co-owned co-owned co-owned co-owned co-owned co-owned co-owned co-owned co-owned co-own-own-own-owned co-owned co-owned co-owned co-owned co-owned co-own-o-own-own-own-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o

Topic: Electrostatics Metodi: Gauss’s Law Competenze: Mathematical Modeling Objects: Sphere Fonte: Testo (PDF) — p.5 The Commission has also adopted a proposal for a regulation on the protection of the environment and the environment.

Q38. La velocità degli elettroni emessi da un materiale per effetto fotoelettrico può essere aumentata… A) aumentando la frequenza della luce; B) diminuendo la frequenza; C) aumentando l’intensità di illuminazione; D) diminuendo l’intensità; E) soltanto cambiando il materiale.

Topic: Modern-Quantum Physics Metodi: Photon Energy Relation Competenze: Physical Reasoning Objects: Electron, Photon Fonte: Testo (PDF) — p.7 Risposta: A · Soluzioni (PDF)

The speed of electrons emitted by a photoelectric material can be increased… (a) increasing the frequency of light; (b) decreasing the frequency; (c) increasing the intensity of illumination; (d) decreasing the intensity; (e) only changing the material.

Topic: Modern-Quantum Physics Metodi: Photon Energy Relation Competenze: Physical Reasoning Objects: Electron, Photon Fonte: Testo (PDF) — p.7 The Commission has also adopted a proposal for a regulation on the protection of the environment and the environment.

Q39. Un punto materiale si muove su traiettoria circolare di raggio $R=10\text{m}$. In un certo istante il modulo della velocità è $10{\text{m s}}^{-1}$ e sta aumentando a $10{\text{m s}}^{-2}$. In quell’istante l’angolo tra velocità e accelerazione è… A) $0$; B) $45°$; C) $90°$; D) $135°$; E) $180°$.

Accelerazione pendolo semplice A-E

Grafico velocità-tempo oggetto 2 kg

Blocchi con molle parallelo e serie

Cinque configurazioni Atwood A-E

Grafico forza Fx(t) nel tempo

Tre masse con fili e pulegge

Scatola su piano inclinato con direzioni

Topic: Newtonian Mechanics Metodi: Vector Decomposition, Kinematic Equations Competenze: Mathematical Modeling, Physical Reasoning Objects: — Fonte: Testo (PDF) — p.3 Risposta: B · Soluzioni (PDF)

Q39. A material point moves on a circular path of $R=10\text{m}$ radius. At a given moment the speed module is $10{\text{m s}}^{-1}$ and is increasing to $10{\text{m s}}^{-2}$. In that instant, the angle between speed and acceleration is… A) $0$; B) $45°$; C) $90°$; D) $135°$; E) $180°$.

The speed of the commutator shall be determined by the following steps:

Time-speed chart of object 2 kg

Blocks with parallel and serial springs

The following is the list of the following:

Graph of force Fx(t) over time

Three masses with wires and plugs

*Box on a flat slope with directions *

Topic: Newtonian Mechanics Metodi: Vector Decomposition, Kinematic Equations Competenze: Mathematical Modeling, Physical Reasoning Objects: — Fonte: Testo (PDF) — p.3 The Commission has also adopted a proposal for a Regulation (EC) on the common organization of the market in milk and milk products.

Q40. La luce di un laser cade su due fenditure distanti $0.1\text{mm}$; su uno schermo distante la separazione tra frange brillanti consecutive è $1.0\text{mm}$. Applicando un duplicatore di frequenza (luce a frequenza doppia), la separazione tra le frange diventa… A) $0.25\text{mm}$; B) $0.5\text{mm}$; C) $1.0\text{mm}$; D) $2.0\text{mm}$; E) $4.0\text{mm}$.

Sovrapposizione impulsi d’onda A-E

Specchio sferico concavo con fuoco F e oggetto O

Topic: Wave Optics Metodi: Interference & Diffraction Analysis Competenze: Mathematical Modeling Objects: Slit, Screen Fonte: Testo (PDF) — p.3 Risposta: B · Soluzioni (PDF)

Q40. The light of a laser falls on two spaced slits $0.1\text{mm}$; on a spaced screen the separation between consecutive bright fringes is $1.0\text{mm}$. By applying a frequency duplicator (double frequency light), the separation between the franges becomes… A) $0.25\text{mm}$; B) $0.5\text{mm}$; C) $1.0\text{mm}$; D) $2.0\text{mm}$; E) $4.0\text{mm}$.

The following is a list of the types of air conditioning systems used:

Fire-flammed concave spherical mirror and object O

Topic: Wave Optics Metodi: Interference & Diffraction Analysis Competenze: Mathematical Modeling Objects: Slit, Screen Fonte: Testo (PDF) — p.3 The Commission has also adopted a proposal for a Regulation (EC) on the common organization of the market in milk and milk products.