1.

If p is the momentum of the fastest electron ejected from a metal surface after the irradiation of light having wavelength λ, then for 1.5 p momentum of the photoelectron, the wavelength of the light should be:(Assume kinetic energy of ejected photoelectron to be very high in comparison to work function):

A. \(\frac{3}{4}\lambda \)
B. \(\frac{1}{2}\lambda \)
C. \(\frac{2}{3}\lambda \)
D. \(\frac{4}{9}\lambda \)
Answer» E.


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