Question

According to Bohr’s theory, the angular momentum of an electron in 5th orbit is ______.

Options

• `(25"h")/pi`

• `(10"h")/pi`

• `(1.0"h")/pi`

• `(2.5"h")/pi`

Answer 1

According to Bohr’s theory, the angular momentum of an electron in 5th orbit is `underline((2.5"h")/pi)`.

Explanation:

For the electron in 5th orbit,

angular momentum = mvr = `(5"h")/pi = (2.5"h")/pi`