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Assertion : Photoelectric effect support...

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

A

there is a minimum frequency below which no photoelctrons are emitted

B

the maximum kinetic energy of photoelctrons depends only on the frequency of light and is independent of intensity.

C

even when the metal surface is illuminated with very small intensity the photoelectrons ( if `v gt v_(th)`) leave the surface immediately

D

electric charge of the phtoelectrons is quantized

Text Solution

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The correct Answer is:
A, B, C
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Knowledge Check

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

  • In photoelectric effect, stopping potential depends on

    A
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    C
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