1.

The ratio (in S.I. units) of magnetic dipole moment to that of the angular of electron of mass m kg and charge e coulomb in Bohr's orbit of hydrogen atom is :

Answer»

`(c)/(2m)`
`e/m`
`(2e)/(m)`
None of these

Solution :Magnetic DIPOLE MOMENT `=IA =e/T PI r^(2)`
`=(e(pi r^(2)))/(2pi) omega=er^(2) omega=(er^(2) omega)/(2) ........(1)`
Angular momentum `=mvr =mr^(2) omega`
`("magnetic dipole moment")/("Angular momentum")=(er^(2)omega)/(2) XX (1)/(mr^(2) omega)=(e)/(2m)`


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