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Question

Suppose a photon of frequency (v) causes photoelectric emission from a surface with threshold frequency (vo), what is the de-Broglie wavelength of the photoelectron of maximum kinetic energy in terms of Δv=vv0 ?

A
Δv=hZmλ
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B
Δv=hλ
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C
[1v01v]=mc2h
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D
λ=(h2πΔv)1/2
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