The variation of photo-current with collector | vedclass

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(C) According to Einstein's photoelectric equation,the stopping potential $V_{0}$ is related to the frequency of incident radiation $v$ by the relatio

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

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(C) According to Einstein's photoelectric equation,the stopping potential $V_{0}$ is related to the frequency of incident radiation $v$ by the relation: $eV_{0} = h u - \phi$,where $h$ is Planck's constant and $\phi$ is the work function of the metal.From the graph,the stopping potentials for the three frequencies are $V_{01}, V_{02},$ and $V_{03}$ respectively.It is observed that $|V_{03}| > |V_{02}| > |V_{01}|$.Since the stopping potential is directly proportional to the frequency of the incident radiation,a higher magnitude of stopping potential corresponds to a higher frequency.Therefore,the relationship between the frequencies is $v_{3} > v_{2} > v_{1}$,which is equivalent to $v_{1} < v_{2} < v_{3}$.

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:

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