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Question

Calculate the magnitude of spin angular momentum of an electron.

A
3h4π
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B
h4π
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C
3hπ
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D
hπ
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Solution

The correct option is A 3h4π
The spin angular momentum of electron =h2πs(s+1)
Since s = 1/2,
The spin angular momentum of an electron =h2π12×32
=3h4π

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