Number of ejected photoelectrons increases with increase (a) in intensity of light (b) in wavelength of light (c) in frequency of light (d) never

Answer: (a). Number of ejected electrons ∝ number of photons per second ∝ intensity. Changing wavelength or frequency changes only the KE of electrons, not their number. So the answer is (a) in intensity of light.

Number of ejected photoelectrons increases with increase | NEET 1993 (AIPMT)

Q86NEET 1993 · AIPMTEasy

Photoelectric Experiment: Intensity, Stopping Potential & Graphs

Number of ejected photoelectrons increases with increase

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Answer: (a)

Number of ejected electrons $\propto$ number of photons per second $\propto$ intensity.
Changing wavelength or frequency changes only the KE of electrons, not their number.
So the answer is (a) in intensity of light.

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Photoelectric Experiment: Intensity, Stopping Potential & Graphs question from NEET 1993 (AIPMT)

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