| Assertion (A): Kinetic energy of photoelectrons emitted by a photosensitive surface depends upon the frequency of incident photon. |
| Reason (R): The ejection of electrons from metallic surface is possible with frequency of incident photon below the threshold frequency. |
A) Both A and R are true and R is the correct explanation of A
B) Both A and R are true but R is NOT the correct explanation of A
C) A is true but R is false
D) A is false and R is true
Correct Answer: C
Solution :
| Option [c] is correct. |
| Explanation: K.E. depends up On the frequency. |
| So assertion is true. |
| Photoelectron emitted when frequency of incident radiation is more than the threshold frequency. So reason is also false. |
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