Q.

The velocity of electron in hydrogen atom is 7.29 × 107 cm/sec. The potential energy of that electron is

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answer is 3.

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Detailed Solution

H-atom, Z = 1 and V1 = 2.18 × 108 cm/sGiven Vn = 7.29 × 107 cm/s7.29 × 107 = 1/n (2.18 × 108)n = 3When n = 3, T.E = -1.51 evP.E = -3.02 ev
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The velocity of electron in hydrogen atom is 7.29 × 107 cm/sec. The potential energy of that electron is