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A photosensitive metallic surface has wo...

A photosensitive metallic surface has work funtion `hv_(0)`. If photons of energy `2hv_(0)` fall on this surface the electrons come out with a maximum velocity of `4xx10^(6) m//s`. When the photon energy is increases to `5hv_(0)` then maximum velocity of photo electron will be

A

` 2xx 10^(6) m//s `

B

`2 xx 10^(7) m//s `

C

`8 xx 10^(5) m//s `

D

`8 xx 10^(6) m//s `

Text Solution

Verified by Experts

The correct Answer is:
D
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