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Solution


Q.

In photoelectric effect                                            [2023]

A. The photocurrent is proportional to the intensity of the incident radiation.

B. Maximum kinetic energy with which photoelectrons are emitted depends on the intensity of incident light.

C. Max. K.E. with which photoelectrons are emitted depends on the frequency of incident light.

D. The emission of photoelectrons require a minimum threshold intensity of incident radiation.

E. Max. K.E. of the photoelectrons is independent of the frequency of the incident light.

Choose the correct answer from the options given below:
1 A and E only  
2 A and C only  
3 A and B only  
4 B and C only  

Ans.

(2)

Intensity of light∝number of photons∝no. of photoelectrons∝photocurrent

So, A is correct

KEmax=hν-ϕ

KEmax depends on frequency

So, C is correct

So, A and C are correct