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Assertion : Photosensitivity of a metal ...

Assertion : Photosensitivity of a metal is high if its work function is small.
Reason : Work function `= hf_(0)` where `f_(0)` is the threshold frequency.

A

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

B

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

C

If assertion is true but reason both are false.

D

If assertion is false but reason is true.

Text Solution

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Less work function means less energy is required for ejecting out the electrons.
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