In photoelectric 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 requires 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:
Answer: (C) A and C only
Photocurrent $\propto$ intensity (A true). $K_{max}=h\nu-\phi$ depends on frequency (C true) and not on intensity (B, E false). There is a threshold frequency, not a threshold intensity (D false).
Solution by Sreeraj P, M.Sc Physics