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The work function of a metal is 6.6 xx 1...

The work function of a metal is `6.6 xx 10^(-14) J`. Find its threshold frequency.

A

`5 xx 10^(15) Hz`

B

`1 xx 10^(20) Hz`

C

`1 xx 10^(15) Hz`

D

` 10^(25) Hz`

Text Solution

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The correct Answer is:
B
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