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

When light of wavelength is incident on a metal with a work function of hc/ ₀ , the photoelectric effect will occur only if

Options

A₀
B< ₀/2
C2 ₀
D₀

Correct answer

A. ₀

Step-by-step solution

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. The energy of the incident photon is E = hc . The work function of the metal is = hc ₀ . The condition for photoelectric emission is E . hc hc ₀ ₀

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