A) If both the assertion and reason are true and reason explains the assertion.
B) If both the assertion and reason are true but reason does not explain the assertion.
C) If assertion is true but reason is false.
D) If assertion is false but reason is true.
Correct Answer: D
Solution :
The velocity of photoelectron ejected from near the surface is larger than that coming from interior of metal, because for given energy of the incident photon less energy is spent in ejecting the electron near the surface than that from the interior of the surface.
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