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Question
The work function of a metal is hv0. Light of frequency v falls on this metal. Photoelectric effect will take place only if
Options
v ≥ v0
v > 2v0
v < v0
v < v0/2
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Solution
v ≥ v0
As the work function of the metal is hv0, the threshold frequency of the metal is v0.
For photoelectric effect to occur, the frequency of the incident light should be greater than or equal to the threshlod frequency of the metal on which light is incident.
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