A) depend upon the density of the surface
B) possible
C) not possible
D) None of these
Correct Answer: C
Solution :
[c] Work function of aluminium is 4.2 eV. The energy of two photons cannot be added at the moment photons collide with electron all its energy will be dissipated or wasted as this energy is not sufficient to knock it out. Hence emission of electron is not possible.You need to login to perform this action.
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