A photocell stops emission if it is maintaine | vedclass

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(A) The stopping potential $V_0$ is the negative potential applied to the anode with respect to the cathode that stops even the most energetic photoel

Vedclass · Accepted Answer

$2eV$

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(A) The stopping potential $V_0$ is the negative potential applied to the anode with respect to the cathode that stops even the most energetic photoelectrons from reaching the anode.The maximum kinetic energy $K_{\max}$ of the emitted photoelectrons is related to the stopping potential $V_0$ by the equation:$K_{\max} = e|V_0|$Given that the stopping potential is $V_0 = 2V$,we substitute this value into the equation:$K_{\max} = e 	imes 2V = 2eV$Therefore,the energy of the most energetic photoelectron is $2eV$.

$A$ photocell stops emission if it is maintained at $2V$ negative potential. The energy of the most energetic photoelectron is:

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