In the following arrangement y = 1.0 mm ...

In the following arrangement `y = 1.0 mm , d = 0.24 mm` and `D = 1.2 m`. The work function of the material of the emitter is `2.2 eV`. The stopping potential `V` needed to stop the photo current will be

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In the arrangement shown if Fig. y=1.0mm , d=0.24mm and D=1.2m . The work function of the material of the emitter if 2.2 eV. Find the stopping potential V needed to stop photocurrent (in xx10^(-1) V).

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In the following arrangement `y = 1.0 mm , d = 0.24 mm` and `D = 1.2 m`. The work function of the material of the emitter is `2.2 eV`. The stopping potential `V` needed to stop the photo current will be

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