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Retarding potential depends on the frequency of incident radiation but is independent of intensity.

1. Retarding potential depends on the frequency of incident radiation but is independent of intensity.
2. The number of photoelectrons emitted is proportional to the intensity of incident light.
3. The stopping potential is equal to the maximum kinetic energy.
4. The threshold frequency is the minimum frequency required for photoelectric emission.

Correct answer: Retarding potential depends on the frequency of incident radiation but is independent of intensity.

Solution

The retarding potential (stopping potential) is determined by the maximum kinetic energy of the emitted photoelectrons, which depends on the frequency of the incident radiation as per Einstein's photoelectric equation, and is independent of the intensity of the light.

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