Question

In photo electric effect 

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 C only 

(2) A and E only 

(3) B and C only 

(4) A and B only

Answer 1

(1) A and C only 

Intensity of light ∝ number of photons ∝ no of photo electrons ∝ photo current

So, A is correct

KE_max = hv – ϕ 

KE_max depends on frequency 

So, C is correct 

So, A and C are correct