Question

The angle made by orbital angular momentum of electron with the direction of the orbital magnetic moment is ______.

Options

• 120°

• 60°

• 180°

• 90°

Answer 1

The angle made by orbital angular momentum of electron with the direction of the orbital magnetic moment is 180°.

Explanation:

The relation between electron's angular momentum Land magnetic moment µ given,

µ = - `"e"/(2"m"_"e")"L"` where e and m_e are the charges and mass of the electron.

Here, negative sign shows that the angular momentum and magentic moment are in opposite direction to each other i.e., if L in + z-direction then µ in-z-direction.

So, the angle between L and µ is 180°.