For a hydrogen atom,the energy of the $n^{th}$ orbit is given by the equation $E \propto n^y$. What is the value of $y$?

When the electron passes from the energy state nearest to the nucleus to the third energy level,it will:

Which of the following is correct for the Humphrey series of the hydrogen spectrum?

The angular momentum of an electron in a stationary state of $Li^{2+} (Z=3)$ is $\frac{3h}{\pi}$. The radius and energy of that stationary state are respectively:

What is the relation between radius, order of orbit, and nuclear charge for hydrogen-like species?

If change in energy $(\Delta E) = 3 \times 10^{-8} \ J$,$h = 6.64 \times 10^{-34} \ J \cdot s$ and $c = 3 \times 10^8 \ m/s$,then the wavelength of the light is: