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Question

The spin angular momentum of an electron is given by:

A
{(s(s+1)}h2π
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B
sh2π
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C
34sh2π
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D
h4π
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Solution

The correct option is A {(s(s+1)}h2π
The magnitude of spin angular momentum is given by:
{(s(s+1)}h2π.
For a single electron,
s=±12
s=+12
12(12+1)h2π.
=32h2π

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