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The quantum number + 1//2 and -1//2 for...

The quantum number `+ 1//2` and `-1//2` for the electron spin represent

A

rotation of the electron in clockwise and anticlockwise directions respectively

B

rotation of the electron in anticlockwise and clockwise direction respectively.

C

magnetic momentum of electron pointing up and down respectively

D

two quantum mechanical spin states which have no classical anologues.

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The correct Answer is:
D
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