The radius and the energy of the first Bohr orbit in a hydrogen atom are $r_{1}r\_1$ and $E_{1}E\_1$ . If the orbital electron makes a transition to a orbit of radius 4r the energy of the electron changes to

A hydrogen atom in its ground state is excited to the state of energy $E_{3}E\_3$ by an electron colliding with it. The minimum energy that the colliding electron must have is

The energy of the electron in a hydrogen atom is raised from a state of energy E2 to that of energy E4. In the process, its

Given that R is the Rydberg constant for hydrogen, the $H_{\alpha }H\_\{\backslash alpha\}$ line in the hydrogen spectrum has a wavelength

When the electron in a hydrogen atom jumps from the second orbit to the first orbit, the wavelength of the emitted rediation is λ. When the electron jumps from the third orbit to the first orbit, the wavelength of the emitted radiation would be

In hydrogen atom, the Balmer series is obtained when the electron jumps from

In Bohr’s model of an atom which of the following is an integral multiple of $\frac{h}{2\pi }\backslash frac\{h\}\{2\; \backslash pi\}$?

On moving up in the energy states of a H-like atom, the energy difference between two consecutive energy states

The transition of electron from n = 4, 5, 6, ………. to n = 3 corresponds to

Which of the following spectral series in hydrogen atom gives spectral line of 4860 $\mathring{A}\backslash mathring\; \{A\}$?