NEET Exam Model Paper 11

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Question : 8 of 180

Marks: +1, -0

In photoelectric effect when photons of energy hv fall on a photosensitive surface (work function =ϕ) electrons are emitted from the metallic surface with a kinetic energy. It is possible to say that

All ejected electrons have same kinetic energy equal to hv−ϕ
The ejected electrons have a distribution of kinetic energy from zero to hv−ϕ
The most energetic electrons have kinetic energy equal to ϕ
All ejected electrons have kinetic energy hv

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