The principle of emission of electrons from a metal surface, under the influence of light is known as

The principle of emission of electrons from a metal surface, under the

1.	The principle of emission of electrons from a metal surface, under the influence of light is known as
A.	secondary emission
B.	photoelectric emission
C.	thermionic emission
D.	none of these
Answer» C. thermionic emission

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The principle of emission of electrons from a metal surface, under the influence of light is known as

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