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When light of wavelength λ is incident o...

When light of wavelength λ is incident on a metal surface ,stopping potential is found to be `V_circ` . When light of wavelength nλ is in incident on the same metal surface ,stopping potential is found to be `V_circ/(n+1)`. The threshold wavelength of the metal is

A

`n^3λ`

B

`λ/n^2`

C

n^2λ`

D

(n+2)λ`

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The correct Answer is:
D
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