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A light beam of wavelength lambda inci...

A light beam of wavelength `lambda` incident on a silver sphere of radius r. suspended by a nonconducting thread. Find potential aquired by sphere

A

`v = (hc)/(e) [(1)/(lambda) - (1)/(lambda_(0))]`

B

`v = (h)/(ec) [(1)/(lambda) - (1)/(lambda_(0))]`

C

`v = (hc)/(e) [(1)/(lambda_(0)) - (1)/(lambda)]`

D

None of these

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