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The ratio of magnetic dipole moment to a...

The ratio of magnetic dipole moment to angular momentum of electron is

A

`e/m`

B

`e/(2m)`

C

`m/e`

D

`(2m)/e`

Text Solution

Verified by Experts

The correct Answer is:
B
Magnetic dipole moment `=M`
`=IA`
`=(ev)/(2pi r) pi r^(2)=(evr)/2`
Angular momentum `=L`
`=mrv`
Thus, `M/L=(evr//2)/(mrv)=e/(2m)`
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