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Radiation of wavelength lambda in indent...

Radiation of wavelength `lambda` in indent on a photocell . The fastest emitted electron has speed `v` if the wavelength is changed to `(3 lambda)/(4)` , then speed of the fastest emitted electron will be

A

`ltV(4/3)^(1/2)`

B

`=V(4/3)^(1/2)`

C

`=V(3/4)^(1/2)`

D

`gtV(4/3)^(1/2)`

Text Solution

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The correct Answer is:
D
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