CUET · PHYSICS · PYQ PAPER 2025
If the intensity of incident radiation on metal is doubled, the kinetic energy of electrons emitted would be
- A doubled
- B halved
- C unaffected
- D four times
Answer & Solution
Correct Answer
(C) unaffected
Step-by-step Solution
Detailed explanation
The maximum kinetic energy of photoelectrons depends only on the frequency of the incident radiation and the nature of the metal surface (work function). Doubling the intensity only increases the number of photons and emitted electrons, not their individual energy.
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