Question

Find the no. Of waves in 5 orbit of an atom.

Answer 1

No.of waves = circumference of electron orbit / wave length
=2πr /λ
λ=h /mv
No.of waves =2π/h *(mvr)
The angular momentum in 5th orbit, mvr = nh/2π
= 5h/2π Substitute the mvr value No.of waves=2π/h* 5h/2π =5