10 58 eV In photo emissive cell with exciting wavelength the fastest electron has speed...
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10 58 eV In photo emissive cell with exciting wavelength the fastest electron has speed v If the exciting wavelength changed to 32 4 the speed of the fastest emitted electron will be 1 v 3 4 2 2 v 4 3 2 3 less than u 4 3 2 4 greater than u 4 3 2 The rphotoelectric work function for a metal surface is 4 125 eV The cut off wavelength for this surface is
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