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The threshold frequency v(0) for a metal...

The threshold frequency `v_(0)` for a metal is `7xx10^(14)s^(-1)` . Calculate the kinetic energy of an electron emitted when radiation of frequency `v = 1.0 xx 10^(15)s^(-1)` hits the metal .

A

`1.988xx10^(-19)J`

B

`1.899xx10^(-19)J`

C

`1.788xx10^(-18)J`

D

`1.889xx10^(-19)J`

Text Solution

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The correct Answer is:
A
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