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When ultraviolet rays incident on metal ...

When ultraviolet rays incident on metal plate there photoelectric effect does not occur, it occurs by incident of

A

infrared rays

B

X-rays

C

radio waves

D

microwaves

Text Solution

Verified by Experts

The correct Answer is:
B
It indicates that threshold frequency is greater than that of ultraviolet light. As X-ryas have greater frequency than UV rays, so they can cause photoelectric effect.
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