MHT CET 2026 Physics question
In case of photoelectric emission from certain metal, the cutoff frequency is . If the radiation of frequency is incident on the metal plate, the maximum possible velocity of the emitted electrons will be (m = mass of electron, h = Planck's constant)
Answer: (C)
Solution
The work function is (cutoff frequency ). Einstein's photoelectric equation: . So , giving and , option (C). Trap:
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