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The Photon Model

When ultravio...

Question

When ultraviolet rays are incident on metal plate, then photoelectric effect does not occurs. It occurs by the incidence of

A

X-rays

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B

Radio wave

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C

Infrared rays

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D

Green house effect

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Solution

The correct option is A
X-rays

$λ_{X - r a y} < λ_{U V - r a y}$
We will need to send energy packets with higher energy than that possessed by ultraviolet rays.

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