Chemistry Structure of Atom Quantum Number, Electronic Configuration and Shape of Orbitals Single Correct MCQ
Published on: August 13, 2026

Which of the following statement is true in the context of photoelectic effect ?

A
The kinetic energy of ejected electron is independent of the intensity of a radiation.
B
The number of photoelectrons ejected depends upon the intensity of the incident radiation.
C
The kinetic energy of the emitted electrons depends on the frequency of the incident radiation.
D
All of these

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The correct answer is:
D

We know that,

The kinetic energy of an ejected electron is directly proportional to the frequency of the incident radiation and is independent of the intensity of the incident radiation. Whereas, the number of photoelectrons ejected is directly proportional to the intensity of the incident radiation and is independent of the frequency of the incident radiation.

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