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Questions  

If light of wavelength λ1 is allowed to fall on a metal, then kinetic energy of photoelectrons emitted is E1. If wavelength of light changes to λ2 then kinetic energy of electrons changes to E2. Then work function of the metal is

a
b
c
d

detailed solution

Correct option is C

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Light described at a place by equation E=200vmsin2×1015s1t+sin10×1015s1t   falls on metal surface having work function 2 eV, the maximum kinetic energy of photoelectrons?


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