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Photoelectric emission is observed from ...

Photoelectric emission is observed from a metallic surface for frequencies `v_(1)` and `v_(2)` of the incident light rays `(v_(1) gt v_(2))`. If the maximum values of kinetic energy of the photoelectrons emitted in the two cases are in the ratio of `1 : k` , then the threshold frequency of the metallic surface is

A

`(v_1-v_2)/(K-1)`

B

`(Kv_1-v_2)/(K-1)`

C

`(Kv_2-v_1)/(K-1)`

D

`(v_2-v_1)/(K)`

Text Solution

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The correct Answer is:
B
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