The mangnitue of spin angular momentum of electron is givenby :

Options

A. `S = sqrt(s(s + 1)) (h)/(2 pi)`
B. `S = (h)/(2 pi)`
C. `S = (sqrt(3))/(2) xx (h)/(2 pi)`
D. `S = +- (1)/(2) xx (h)/(2 pi)`

Answer

C

Explanation

( c) Spin angular momentum `= sqrt(s(s +1)) (h)/(2 pi)`
`S = sqrt((1)/(2)((1)/(2) +1)) (h)/(2pi) = (sqrt(3))/(2) xx (h)/(2 pi)`.