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Velocity of an electron in the first orb...

Velocity of an electron in the first orbit of hydrogen atom is `2.2 xx 10^6 ms^(-1)` . What is its velocity in the second orbit?

Text Solution

Verified by Experts

Velocity of an electron in an orbit is
`v = (Ze^2)/(2 epsi_0 nh) = (e^2)/(2 epsi_0 h) (Z/n)`
` rArr v_2/v_1 = 1/2`
` rArr v_2 = (v_1)/(2) = (2.2 xx 10^6)/(2) = 1.1 xx 10^6 ms^(-1)`
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