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Calculate the frequency and wavelength of photon whose energy is 75eV .
1 Answer
written 6.5 years ago by |
Given Data:- :- E=75eV=75×1.6×10(−19)=1.20×10(−17)
Formula :- E=12mv2,λ=hmv=hp
Calculations :- E=mv22m=(mv)22m=h22mλ2
λ=h√2mE=6.63∗10−34√2∗9.1∗10−31∗1.20∗10−17=1.41Ao
Wavelength = 1.41Ao
frequency = 1λ=7.048∗109