List of top Physics Questions on Atomic Spectra

An electron transition takes place from excited state to ground state in hydrogen atom, then

The ratio of momentum of the photons of the $1^{\text{st}}$ and $2^{\text{nd}}$ line of Balmer series of Hydrogen atoms is $\alpha/\beta$. The possible values of $\alpha$ and $\beta$ are:-

What will be the ratio of the wavelength of the 3rd line of the Paschen Series to the 2nd line of the Balmer series of H-atom?

Out of the following transitions in hydrogen atom, identify the transition which emits photons of highest frequency.

Some energy levels of a molecule are shown in the figure with their wavelengths of transitions. Then:

The longest wavelength associated with Paschen series is: (Given $R_H = 1.097 \times 10^7$ SI unit)

If an electron jumps from the 3rd orbit to the 2nd orbit, its wavelength is \(\lambda\). Then the wavelength of the electron when it jumps from the 4th orbit to the 3rd orbit in terms of \(\lambda\) is:

What are the gyromagnetic ratio and Bohr magneton?

The ratio of the shortest wavelength of the Balmer series to the shortest wavelength of the Paschen series is:

If half life for a radioactive decay reaction is T. Find the time after which \(\frac{7}{8}th\) of initial mass decays

Find the ratio of energies of photons produced due to transition of an electron of hydrogen atom from its (i) second permitted energy level to the first level, and (ii) the highest permitted energy level to the first permitted level.

The ratio of the kinetic energy to the total energy of an electron in Bohr orbit is

The ratio of wavelengths of the last line of Balmer series and the last line of Lyman series is :

Ratio of longest wavelengths corresponding to Lyman and Balmer series in hydrogen spectrum is :

The wavelength of the first line of Lyman series for hydrogen atom is equal to that of the second line of Balmer series for a hydrogen like ion. The atomic number $Z$ of hydrogen like ion is