Chemistry, asked by ramangill3762, 1 year ago

Find threshold wavelength given work function is 4.5ev

Answers

Answered by Fatimakincsem
0

The threshold wavelength is λ0 = 2958 A0.

Explanation:

In this case the threshold wavelength of photo electric effect of molybdenum is :

λ0 = hc / W0

λ0 = 6⋅626×10^−34 × 3×10^ 8 / 4⋅2 × 1⋅6×10^−19

λ0 =2⋅958×10^−7 m

λ0 =2958 A0

Hence the threshold wavelength is λ0 =2958 A0.

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