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Question
When ultraviolet rays are incident on a metal plate, the photoelectric effect does not occur. It occurs by incidence of -
When ultraviolet rays are incident on a metal plate, the photoelectric effect does not occur. It occurs by incidence of -
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Solution
The correct option is B X-rays
Photoelectric emission occurs only when incident radiation have frequency greater than a minimum value.
As ultraviolet rays are incident on a metal plate, the photoelectric effect does not occur, therefore the radiation of higher frequency (or lower wavelength) should be used.
X-rays have higher frequency than ultraviolet rays.
Hence, option (B) is the correct answer.
Photoelectric emission occurs only when incident radiation have frequency greater than a minimum value.
As ultraviolet rays are incident on a metal plate, the photoelectric effect does not occur, therefore the radiation of higher frequency (or lower wavelength) should be used.
X-rays have higher frequency than ultraviolet rays.
Hence, option (B) is the correct answer.
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