The figure shows the variation of photocurrent with anode potential for a photo-sensitive surface for three different radiations. Let Ia, Ib and Ic be the intensities and fa, fb and fc be the frequencies for the curves a, b and c respectively
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a
fa=fb and Ia≠Ib
b
fa=fc and Ia=Ic
c
and
d
and
answer is C.
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Detailed Solution
The stopping potential for curves a and b is same. Also saturation current is proportional to intensity