Question

According to Bhor' s theory the moment of momentum of an electron revolving in second orbit of hydrogen atom will be.

Options

• `2pih`

• `pih`

• `h/pi`

• `(2h)/pi`

Answer 1

`2pih`

Explanation:

Angular momentum = `n (h/(2pi)) = 2(h/(2pi)) = h/pi`.