Question

151.
The process of emission of electrons from the metal surface when light is incident on it is called
effect.
(a) Seebeck
(b) photoelectric
Photoelectric effect confirms the
(c) Compton
(d) all of these
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Answer 1

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Answer:

b option is right

Photo-electric emission: Light of different frequencies have different energies. More the frequency more will be the energy of the light. Hence when a light with suitable energy is incident on a metal surface, the electrons are emitted from the metal surface. These electrons are called photo-electrons.

Answer 2

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