The angular momentum of an electron in first excited state of hydrogen atom is

1. $3\hslash$
2. $2\hslash$
3. $\frac{\hslash }{2}$
   
4. $\hslash$

Q. Calculate the angular momentum of an electron present in the third excited state of H atom

Q. The angular momentum of an electron present in the excited state of Hydrogen is $\frac{1.5h}{\pi }$. The electron is present in:

Q. If the energy of the electron in hydrogen atom in a certain excited state is $-3.4eV$, then what will be its angular momentum?

Q. The change of angular momentum for an electrons during electronic excitation between any two successive orbits in hydrogen atom is