Assertion:- Work function of aluminum is \( 4.2 \mathrm{eV} \). (A)...

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Assertion:- Work function of aluminum is \( 4.2 \mathrm{eV} \). (A) Both assertion and reason are correct statements, and reason is the correct If two photons each of energy \( 2.5 \mathrm{eV} \) strikes on a explanation of the assertion. piece of aluminum, the photo electric emission
(B) Both assertion and reason are correct statements, but reason is not the correct does not occur. explanation of the assertion.
Reason :- In photo electric effect a single photon
(C) Assertion is correct, but reason is wrong statement. interacts with a single electron and electron is
(D) Assertion is wrong, but reason is correct statement.
- emitted only if energy of each incident photon is greater then the work function.
(1) \( \mathrm{A} \)
(2) B
(3) C
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