Question

What is the velocity of an electron in the 3rd orbit of hydrogen atom if its velocity in the 1^st orbit is v₀?

Answer 1

`v  α  1/n`

`v_1/v_3 = n_3/n_1`

`V_0/v_3 = 3/1 (Here  v_1 = V_0)`

`v_3 = V_0/3`

The velocity of an electron in the 3^rd orbit of a hydrogen atom is `1/3` of the velocity of an electron in the 1st orbit.