KCET 2021 Physics Solved Paper

The maximum kinetic energy of photoclectron cjected is given byKE=hv−ϕ0=hv−hv0=h(v−v0)
If the frequency of incident radiation is greater than threshold frequency v0, then the ejection of photoelectrons starts. After that as frequency increases, kinetic energy also increases linearly. It is shown in option (d).