Question

what is photoelectric emission?

Answer 1

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BY ILLUMINATING THE METAL SURFACE WITH LIGHT (ELECTRO MAGNETIC WAVES LIKE ULTRAVIOLET RAYS ) OF SUITABLE FREQUENCY .THE ELECTRONS SO EMITTED ARE CALLED PHOTO ELECTRONS.

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Answer 2

$\bold{\huge{\underline{ \underline{\mathbb{PHOTOELECTRIC \: EMISSION \: }}}}}$




The light-electro effect was discovered by scientists, Henrik Hurtus, in 1887 at the time of his experimental exploration of the origin of electromagnetic waves


After J.J. T. Thompson discovered the electron in 1897, it was clear that the amount of ultraviolet light emitted by the ultraviolet light on the zinc plate was emitted. These electrons are attracted by money-plate.



Therefore, due to the completion of the circuit, a stream flows in the circuit. Thus, when light of appropriate frequency is applied on any metal, electrons are emitted from its page. These electrons are light-electron and this phenomenon is called light-electrochemical or light-emitting Electrochemical.