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Question

If the work function of a metal is ϕ and the frequency of the incident light is 'v', there is no emission of photoelectron if


A

v<ϕh

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B

v=ϕh

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C

v>ϕh

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D

v>=<ϕh

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Solution

The correct option is A

v<ϕh


For no emission of photoelectron, energy of incident light < Work function hv<ϕv<ϕh


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