The gyromagnetic ratio of an electron in an H-atom, according to Bohr model, is

Options

A. independent of which orbit it is in.
B. negative
C. positive
D. increases with the quantum number n.

Answer

A, B

Explanation

Gyromagnetic ratio, `mu_(l)=-e/(2m_(e))l`
Gyromagnetic ratio = `("Magnetic moment of e")/("Angular momentum of e")`
`mu_(l)=M_(e)/L_(e)`
= `(-evr)/(2m_(e)vr)" "(becauseM_(e)=(-evr)/2" "L_(e)=m_(e)vr)`
`mu_(l)=(-e)/(2m_(e))`
Magnetic moment doesn.t depend on velocity of electron. But only depends on charged particle e and it is negative. So, option (A) and (B) are ture.