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Photoelectric emission is observed from ...

Photoelectric emission is observed from a surface for frequencies `v_1` and `v_2` of the incident radiation (`v_1 gt v_2`) if maximum kinetic energies of the photo electrons in the two cases are in the ratio 1:K, then the threshold frequency is given by :

A

`(v_(2)-v_(1))/(K-1)`

B

`(Kv_(1)-v_(2))/(K-1)`

C

`K(v_(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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