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Assertion: Work function of a metal is 5...

Assertion: Work function of a metal is 5 eV. The maximum wavelength of photons required to emit electrons from its surface is 2480 `Å.`
Reason: Work function, `phi_0=(hc)/lamda_max`.

A

Assertion is True, Reason is True,
Reason is a correct explanation for Assertion.

B

Assertion is True, Reason is True,
Reason is not a correct explanation for Assertion.

C

Assertion is True, Reason is False.

D

Assertion is False but, Reason is True.

Text Solution

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The correct Answer is:
A
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