Light of wavelength 189 nm shines on a metal surface 394 ev, Ask an Expert

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Light of wavelength 189 nm shines on a metal surface. 3.94 eV is required to eject an electron. What is the kinetic energy (in eV) of

(a) the fastest and

(b) the slowest ejected electrons?

(d) What is the cutoff wavelength for this metal?

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Reference No.:- M9877420

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