The angular momentum of an electron in the $7^{th}$ Bohr orbit of a hydrogen atom is given by:

Which of the following orders is $NOT$ correct for the $1^{st}$,$2^{nd}$,and $3^{rd}$ orbits of a hydrogen-like atom?

When an electron moves from $L$-shell to $M$-shell,then it will be accompanied by :

In a $H$ atom,if the angular momentum of an electron is $3.164 \times 10^{-34} \ kg \ m^2 \ s^{-1}$,what is the energy of the electron in that orbit in $eV$?

Electrons with a kinetic energy of $6.023 \times 10^4 \ J/mol$ are evolved from the surface of a metal when it is exposed to radiation of wavelength $600 \ nm$. The minimum amount of energy required to remove an electron from the metal atom is

The kinetic energy of an electron in the ground state of a $Be^{3+}$ ion is given by: