if the energy of a photon is 25 eV and work function of the material is 7 eV ,then find the value of stopping potential.

Question

Apoorva Arora · Answer

The energy of the photon incident on the metal surface is 25 eV out of which 7 eV is used for knocking out the electron, the rest 18 eV goes into being the KE of the emitted electron. So atleast 18 V of potential is applied to stop the electron and hence the stopping potential is 18V.

ohysh · Answer

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if the energy of a photon is 25 eV and work function of the material is 7 eV ,then find the value of stopping potential.

if the energy of a photon is 25 eV and work function of the material is 7 eV ,then find the value of stopping potential.

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if the energy of a photon is 25 eV and work function of the material is 7 eV ,then find the value of stopping potential.

if the energy of a photon is 25 eV and work function of the material is 7 eV ,then find the value of stopping potential.

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