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Assertion : Photoelectric effect support...

Assertion : Photoelectric effect supports the quantum nature of light.
Reason : Photoelectric emission is instantaneous.

A

If both assertion and reason are true and reason is the correct explanation of assertion.

B

If both assertion and reason are true but reason is not the correct explanation of assertion.

C

If assertion is true but reason is false.

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
B
(b) : Photoelectric effect is observed only when the frequency value depending upon the metal. Small amount of energy given slowly over a long time does not liberate photoelectrons, Thus photoelectric emission is an instantaneous process.
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