Q3 / 50 · Manipal (MET) 2023 · Chemistry

Which of the following conclusion is correct regarding photoelectric effect?

Correct answer
A
Energy of a photon depends upon frequency of light absorbed.
B
Energy of a photon depends upon intensity of light.
C
Kinetic energy of electrons increases due to increase in intensity of light.
D
All the energy of photon is absorbed by metal súrface.

Solution

Energy of photon depends upon frequency and not on intensity. As on increasing the intensity of light of a particular frequency $v$, the number of electrons ejected increases but not their kinetic energy.

Hence, the correct answer is option: 'A'.

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