Published by:
CGP EDU Academic Team
Published on: September 12, 2026
A certain metallic surface is illuminated by monochromatic radiation of wavelength 
. The stopping potential for photoelectric current for this radiation is 
. If the same surface is illuminated with a radiation of wavelength 
, the stopping potential is 
. The threshold wavelength of this surface for photoelectric effect is ____ 
Text Solution
Verified by ExpertsThe correct answer is:
4
(4)
Using (i) & (ii)
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