Atomic Physics Quiz for Fun & Quiz Competition Practice 1

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#1. Which of the following isn't right during collision of photon with a material particle?

#2. If the intensity of light of a given is increased,_________.

#3. Einstein got his nobel prize for which of the following contributions

#4. Stopping potential V0 depends upon ______.

#5. The photocurrent increases if ________.

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1. No. of photons may not remain conserved as new photon may be created or the photon may be completely absorbed.

2. If the intensity of light of a given wavelength is increased, then no. of photons crossing a given area in a given time will increase. An increase in the intensity of incident radiation also increases the no. of electrons emitted from cathode per unit time, also increasing photocurrent.

3. Einstein got nobel for photoelectric effect in 1921, not for special theory of relativity. He put forward this theory in 1905 which is considered Einstein’s magical year when he published ground-breaking papers on photo electric effect and brownian motion and the Special Theory of relativity. 

4. Stopping potential means the potential at which the electrons stop moving towards the anode due to negative voltage. Stopping potential V0 depends upon wavelength and work function f the metal, but not on intensity. 5. The photocurrent increases if the intensity of incident light is increased because the increase in the intensity of light consequently increases the number of electrons emitted per second ultimately increasing photocurrent.

5. The photocurrent increases if the intensity of
incident light is increased because of the increase in
the intensity of light consequently increases the number of
electrons emitted per second ultimately increasing
photocurrent.

Atomic Physics Quiz

1. Which of the following isn’t right during collision of photon with a material particle?

a. Total energy remains conserved

b. Total momentum remain conserved

c. No. of photons remain conserved ()

d. A new photon may be created

2. If the intensity of light of a given is increased,_________.

a. Kinetic energy of electrons increases

b. Increase in the no. of photons crossing a given area in a given time ()

c. Energy of photons increases

d. All of the above

3. Einstein got his nobel prize for which of the following contributions?

a. Special Theory of Relativity

b. Principal of equivalence

c. Brownian motion

d. Photoelectric effect()

4. Stopping potential V0 depends upon ______.

a. The wavelength of light()

b. The intensity of light

c. The amplitude of light

d. All of the above

5. The photocurrent increases if ________.

a. The kinetic energy of electrons is increased.

b. Wavelength of light decreased

c. If intensity of incident light is increased()

d. None of the above

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