The work function of aluminium is \( 4.2 \mathrm{eV} \). If two pho...

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The work function of aluminium is \( 4.2 \mathrm{eV} \). If two photons, each of energy \( 3.5 \mathrm{eV} \) strike an electron of
\( \mathrm{P} \) aluminium, then emission of electrons will be

W
(a) Possible
(b) Not possible
(c) Data is incomplete
(d) Depend upon the area of the surface
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