The figures shows the variation of photocurrent $i$ with anode potential $V$ for three differential…
The figures shows the variation of photocurrent $i$ with anode potential $V$ for three differential radiations. Let $I_a, I_b$ and $I_c$ be the intensities and $f_a, f_b$ and $f_c$ be the frequencies for the curves $a, b$ and $c$ respectively. Then
$f_a=f_b$ and $I_a \neq I_b$
$f_a=f_c$ and $I_a=I_c$
$f_a=f_b$ and $I_a=I_b$
$f_b=f_c$ and $I_b=I_c$
Solution
Stopping potentials for $b$ and $a$ are same
$
\therefore \quad f_a=f_b
$
and saturation current for $b$ and $a$ are different
$
\therefore \quad I_b \neq I_a
$
