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Threshold frequency of a metal is 5xx10^...

Threshold frequency of a metal is `5xx10^(13)s^(-1)` upon which `1xx10^(14)s^(-1)` frequency light is focused. Then the maximum kinetic energy of emitted electron is

A

`3.3xx10^(-21)`

B

`3.3xx10^(-20)`

C

`6.6xx10^(-21)`

D

`6.6xx10^(-20)`

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Knowledge Check

  • The photoelectric threshold frequency of a metal is v. When light of frequency 4v is incident on the metal . The maximum kinetic energy of the emitted photoelectrons is

    A
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    B
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    D
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    B
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