In the lowest energy level of hydrogen atom, the electron has the angular momentum

Options

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

Answer

B

Explanation

Angular momentum of electron in nth orbit is given by
`mvr_(n)=(nh)/(2pi)`,
In the lowest energy level, n = 1
Then, `" "mvr_(1)=1((h)/(2pi))impliesmvr_(1)=(h)/(2pi)`