Question

is photoelectric emission possible at all frequencies ??give reason for your answer.​

Answer 1

no photoelectric emission is not possible at all frequencies . because the kinetic energy of the emitted electron is negative . which is not possible and photoelectric emission cannot take place the frequency of incident radiation is less than the threshold frequency .

Answer 2

HERE IS YOUR ANSWER -----

Because for the emmision to take place there should be a minimum value of frequency related to the work function of the metal.

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