The photo electric work function for a metal surface is 4.135 the cut off wavelength for this surface is multiple choice questions
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Answer:
2873.6 A°
Explanation:
h.c / λ = 4.315
Taking h.c = 1240 ---> gives wavelength in nanometer(nm)
λ = h.c / 4.315 = 1240 / 4.315 nm = 287.36 nm
= 2873.6 A°
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