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Standard XII
Physics
Angular Analogue of Linear Momentum
Question
The energy of electron in an excited hydrogen atom is -3.4 eV. Its angular momentum according to Bohr's theory will be:
h
π
h
2
π
3
h
2
π
2
h
π
A
h
2
π
B
h
π
C
3
h
2
π
D
2
h
π
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Solution
Verified by Toppr
E
=
−
13.6
n
2
e
V
−
13.6
n
2
=
3.4
⇒
n
=
2
So, its angular momentum
=
n
h
2
π
=
2
h
2
π
=
h
π
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