Concepts Of Physics MCQ Edition [Volume 2]PhysicsPhotoelectric Effect and Wave–Particle Duality

A metal has a work function of h ₀ . If light of frequency is incident upon this metal, the photoelectric effect will occur only if

Options

A> 2 ₀
B₀
C< ₀ 2
D< ₀

Correct answer

B. ₀

Step-by-step solution

The work function of the metal is given as W = h ₀ . The energy of the incident light of frequency is E = h . For the photoelectric effect to occur, the energy of the incident photon must be greater than or equal to the work function of the metal. E W h h ₀ ₀

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