Published by:
CGP EDU Academic Team
Published on: August 22, 2026
Surface of certain metal is first illuminated with light of wavelength 
and then, the light of wavelength 
. It is found that the maximum speed of the photo electrons in the two cases differ by a factor of 2 . The work function of the metal (in eV) is close to: 
Energy of photon 
Text Solution
Verified by ExpertsThe correct answer is:
A
(1) - (2)
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