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Question
What is the velocity of an electron in the 3rd orbit of hydrogen atom if its velocity in the 1st orbit is v0?
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Solution
`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 3rd orbit of a hydrogen atom is `1/3` of the velocity of an electron in the 1st orbit.
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