Question
Physics Question on Dual nature of radiation and matter
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
Answer
X-rays
Explanation
Solution
If UV light do not cause the photoelectric effect, it is simply because their wavelength is greater than the metal's threshold wavelength.Only the X-rays in the instances provided have a shorter wavelength than ultraviolet light, which might cause the effect.The right response is thus X-rays.