Choose the correct statement(s)
A. In photo electric effect, the minimum negative potential to the plate A for which photocurrent is zero is called saturation potential.
B. Maximum kinetic energy of photoelectrons is directly proportional to intensity of incident radiation.
C. $K_{max} = eV_o$
D. Photocurrent becomes zero at stopping potential.
E. For different intensities of light, stopping potential is different.
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → C & D only
(C) The stopping potential $(V_o)$ is related to maximum K.E. by,
$K_{max}=eV_o$
(D) At the stopping potential, the emitted photoelectrons are unable to reach the Anode due to negative potential, and the photocurrent becomes zero.