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Photons of 5.5 eV energy fall on the surface of the metal emitting photoelectrons

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

Options

(a) 4.0 V
(b) 5.5 V
(c) 1.5 V
(d) 9.5 V

Correct Answer:

1.5 V

Explanation:

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