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Q.

The angular momentum of an electron in hydrogen atom is 5h2π. Here h is planck’s constant. The potential energy of this electron is

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a

4.53 eV

b

-1.51 eV

c

6.8 eV

d

-1.088 eV

answer is C.

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Detailed Solution

5th state, n=5

TE=−13.6 Z2n2ev

PE=U=2×TE

=2−0.544=−1.088 eV

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