The photoelectric effect related with the incident light frequency (ν) by the following equation: Ek=eVs=hν−ϕ, where ϕ=hν0 is the work function of the material and Ek is the kinetic energy of the photo electron. So, Ek=hν−hν0 or, hν=hν0+Ek
So, the answer is option (C).
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