The variation of photo-current with collector potential for...

The variation of photo-current with collector potential for different frequencies of incident
radiation

v_{1}, v_{2}

and

v_{3}

is as shown in the graph, then
The variation of photo-current with collector potential for different frequencies of incident radiation v_ 1 , v_ 2 and

Options

A $v_{1}=v_{2}=v_{3}$
B $v_{1}>v_{2}>v_{3}$
C $v_{1} < v_{2} < v_{3}$
D(v_{3}=\frac{v_{1}+v_{2}}{2})

Correct answer

C. $v_{1} < v_{2} < v_{3}$

Step-by-step solution

The stopping potential is directly proportional to the frequency of incident radiation and photoelectric current is
independent of the frequency of incident radiation. Therefore,

f_{1} < f_{2} < f_{3}

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