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A hydrogen atom emits a photon corresponding to an electron transition from n=5 to n=1. The recoil speed of hydrogen atom is nearly equal to????

A hydrogen atom emits a photon corresponding to an electron transition from n=5 to n=1. The recoil speed of hydrogen atom is nearly equal to????

Grade:12th pass

1 Answers

Arun
25758 Points
3 years ago

Let v= h/mλ

v=(h/m)R[(1/n1)-(1/n2)]

(6.4*1010^-34 * 1.1*10^7/1.6*10^-27)(24/25)

=4m/sq

 

Regards

Arun (askII forum expert)

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