When radiation of wavelength 
is incident on a metallic surface, the stopping potential is 4.8 volts. If the same surface is illuminated with radiation of double the wavelength, then the stopping potential becomes 1.6 volts. Then the threshold wavelength for the surface is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
By using 
(i)
and 
(ii)
From equation (i) by (ii),
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