For a metal of work function 1.8 eV, the maximum kinetic energy of emitted photoelectrons is 0.5 eV. The corresponding stopping potential is:
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Question

For a metal of work function 1.8 eV, the maximum kinetic energy of emitted photoelectrons is 0.5 eV. The corresponding stopping potential is:

G1 Physics · Accepted Answer

Stopping potential satisfies eV₀ = Kₘₐₓ. Since Kₘₐₓ = 0.5 eV, V₀ = 0.5 V. Answer: B.