AIPMT PRELIMS2002Physics-Modern Physics
AIPMT PRELIMS 2002 Physics Photoelectric Effect MCQ Question
Type: MCQ-conceptual-Medium-Class 12
When ultraviolet rays incident on metal plate then photoelectric effect does not occur, it occurs by incidence of :-
A
Infrared rays
B
X⁻rays
C
Radio wave
D
Light wave
Correct Answer
Option B
Detailed Explanation
The photoelectric effect requires photons with energy above a certain threshold. X⁻rays have higher energy than ultraviolet rays, making them capable of causing the photoelectric effect.
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