What is the difference of angular momenta of an electron between two consecutive orbits in hydrogen atom?

Options

A. `(h)/(pi)`
B. `(h)/(2pi)`
C. `(h)/(2)`
D. `(2pi)/(h)`

Answer

B

Explanation

Angular momentum in (n+1) orbit
`l_(n+1)=((n+1)h)/(2pi)`
Angular momentum in `n^(th)` orbit `I_(n) = (nh)/(2pi)`
`:.` Difference of angular momenta between two consecutive orbits.
`=l_(n+1)-l_(n)=(nh)/(2pi)+(h)/(2pi)-(nh)/(2pi)=(h)/(2pi)`