The recoil speed of a hydrogen atom after it emits a photon in going from `n=5`, state to `n=1` state is (in `ms^(-1)`)

The recoil speed of a hydrogen atom after it emits a photon is going form n=5 state to n =1 state is ….. m/s.

The recoil speed of hydrogen atom after it emits a photon in going from n = 2 state to n = 1 state is nearly [Take R_(oo) = 1.1 xx 10^(7) m and h = 6.63 xx 10^(-34) J s]

When a hydrogen atom emits a photon in going from n=5 to n=1, its recoil speed is almost

The electron in a hydrogen atom at rest makes a transition from n = 2 energy state to the n = 1 ground state. Assuming that all of the energy corresponding to transition from n = 2 to n = 1 is carried off by the photon. By setting the momentum of the system (atom + photon) equal to zero after the emission and assuming that the recoil energy of the atom is smaller compared with the n = 2 to n = 1 energy level separation , find the energy of the recoiling hydrogen atom.

The electron in a hydrogen atom at rest makes a transition from n = 2 energy state to the n = 1 ground state. find the energy (eV) of the emitted photon.

The wavelength of the photon emitted by a hydrogen atom when an electron makes a transition from n = 2 to n = 1 state is :

What are the (a) energy. (b) magnitude of the momentum, and (c) wavelength of the photon emitted when a hydrogen atom undergoes a transition from a state with n = 3 to a state with n = 1?

If a hydrogen atom at rest, emits a photon of wavelength lambda , the recoil speed of the atom of mass m is given by :