In photoelectric effect, the photo current (a) does not depend on the frequency of photon but depends on intensity of incident light. (b) decreases with Increase in frequency of incident photon. (c) increases with increase in frequency of incident photon. (d) depends with on intensity of incident radiation and its frequency.

Answer: (a). Photocurrent ∝ number of photons per second ∝ intensity. Frequency above threshold only sets the KE of each electron, Kmax = hν - φ. So the answer is (a).

In photoelectric effect, the photo current | MHT CET 2021 (23 Sep, Shift 2)

Q49MHT CET 2021 · 23 SEP · SHIFT 2Easy

Photoelectric Experiment: Intensity, Stopping Potential & Graphs

In photoelectric effect, the photo current

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Answer: (a)

Photocurrent $\propto$ number of photons per second $\propto$ intensity.
Frequency above threshold only sets the KE of each electron, $K_{max} = h\nu - \phi$ .
So the answer is (a).

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Photoelectric Experiment: Intensity, Stopping Potential & Graphs question from MHT CET 2021 (23 Sep, Shift 2)

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