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Photoelectric work function of a metal...

Photoelectric work function of a metal is 1 eV.Light of wavelength `lambda=3,000 overset @A` falls on it.The photoelectrons come out with velocity

A

`10 m s^(-1)`

B

`10^2 m s^(-1)`

C

`10^4 m s^(-1)`

D

`10^6 m s^(-1)`.

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MODERN PUBLICATION-UNIT TEST -07-EXERCISE
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