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The figure shows the variation of photocurrent (I) with anode potential (V) for a photo sensitive surfaces for three different radiations. If I_a,I_b and I_c are the intensities and v_a,v_b and v_c are the frequencies of lights for the curves a,b and c respectively, then

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$v_{a} = v_{b}$ and $I_{a} \neq I_{b}$

$v_{a} = v_{c}$ and $I_{a} = I_{c}$

$v_{a} = v_{b}$ and $I_{a} = I_{b}$

$v_{b} = v_{c}$ and $I_{b} = I_{c}$

answer is A.

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Detailed Solution

If stopping potentials are same then frequencies are same and if saturation photocurrents are same intensities are same.

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