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The work function for a photosensitive surface is 3·315 eV. The cut-off wavelength for photoemission of electrons from t…

Q1

The work function for a photosensitive surface is 3·315 eV. The cut-off wavelength for photoemission of electrons from this surface is :

a

150 nm

b

200 nm

c

375 nm

d

500 nm

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