3 hv A metal surface of work function 1 07 eV is irradiated with light of wavelength 332 nm The retarding potential required to

Question

3 hv A metal surface of work function 1 07 eV is irradiated with light of wavelength 332 nm The retarding potential required to stop the escape of photo electron is 1 4 81 eV 3 2 66 eV 2 3 74 eV 4 1 07 eV Light of wavelength 3000 A is incident on this metal surface The velocity of

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