Atomic Physics

The energy levels of certain atom are represented in the following figure. During the transition from 2E to E level, a photon of wavelength $\lambda$ is emitted. The wavelength of photon produced during transition from…

The radius of the orbit of an electron in a hydrogen like atom is $4.5a_0$, where $a_0$ is the Bohr radius. Its orbital angular momentum is $\dfrac{3h}{2\pi}$. It is given than h is Planck's constant and R is Rydberg's…

A hydrogen atom in its ground state is irradiated by light of wavelength $1026\ \text{\AA}$. The electron gets excited to higher energy state $n$. Given the ground state energy is $-13.6\ \text{eV}$ and $hc = 1242\…

An electron of mass '$m_e$' and charge '$e$' revolving around the nucleus in $n^{th}$ orbit has orbital magnetic moment $\dfrac{enh}{4\pi m_e}$ which is equal to Bohr Magneton, the orbit number in which electron should…

In the Bohr model, an electron moves in circular orbit around the proton. Considering an orbiting elecrton to be a circular current loop, the magnetic moment of the hydrogen atom, when the electron is in n$^{th}$ state,…

The ratio of angular frequency ($\omega$) of an electron to the total energy (E) of an electron in the first orbit of hydrogen atom is ($h$ is the Plank's constant)

The ratio between the areas of Bohr's first three orbits of the hydrogen atom are

The ratio of ionization energy of a hydrogen atom in fifth excited state to second excited state is

When a hydrogen atom is raised from ground energy level to excited energy level, then

The ratio of the wavelength for $2 \rightarrow 1$ transition in $\mathrm{Li}^{+}, \mathrm{He}^{+}$and H is

Minimum energy required to take out the only one electron from ground state of $\mathrm{He}^{+}$is

If an electron in $n=4$ orbit of hydrogen atom jumps down to $n=3$ orbit, the amount of energy released and the wavelength of radiation emitted are