1.

Photons of 5.5 eV energy fall on the surface of the metal emitting photoelectrons of maximum kinetic energy 4.0 eV. The stopping voltage required for these electrons is

Answer»

5.5 V
1.5 V
9.5 V
4.0 V

SOLUTION :Stopping potential `= (K_(max))/(E) = (4.0 EV)/(e) = 4.0 V`


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