The figures shows th 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

Options

A. `f_a = f_b " and " l_a ne l_b`
B. `f_a=f_c " and " l_a=l_c`
C. `f_a=f_b " and " l_a=l_b`
D. `f_b=f_c " and " l_b = l_c`

Answer

A

Explanation

Stopping potentials for b and a are samw
`therefore" "f_(a)=f_(b)`
and saturation current for b and a are different `therefore" "I_(b)neI_(a)`