Published by:
CGP EDU Academic Team
Published on: August 14, 2026
A metallic surface is illuminated with radiation of wavelength 
, the stopping potential is 
. If the same surface is illuminated with radiation of wavelength 
, the stopping potential becomes 
. The threshold wavelength for this metallic surface will be -
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
From the equation of photoelectric effect
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