The work function of aluminium is 4.2 \[eV.\] If two photons, each of – McqOptions

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1.	The work function of aluminium is 4.2 \[eV.\] If two photons, each of energy 3.5 \[eV\]strike an electron of aluminium, then emission of electrons will be [AFMC 1999]
A.	Possible
B.	Not possible
C.	Data is incomplete
D.	Depend upon the density of the surface
Answer» C. Data is incomplete

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