The minimum kinetic energy of a ground state hydrogen atom required to have head-on collision with another ground state hydrogen atom but at rest to produce a photon is given by

At what minimum kinetic energy must a hydrogen atom move for it's inelastic headon collision with another stationary hydrogen atom so that one of them emits a photon? Both atoms are supposed to be in the ground state prior to the collision.

At what minimum kinetic energy must a hydrogen atom move for it's inelastic headon collision with another stationary hydrogen atom so that one of them emits a photon? Both atoms are supposed to be in the ground state prior to the collision.

Assuming that the mass of proton is nearly equal to mass of neutron the minimum kinetic energy in 10^(1) eV of a neutron for inelastic head on collision with a ground state hydrogen atom at rest is -

The minimum energy required to excite a hydrogen atom from its ground state

The minimum enegry required to excite a hydrogen atom from its ground state is

The total energy of an electron in the ground state , of hydrogen atom is

Total energy of an electron in a ground state of hydrogen atom will be—

Calculate the energy of the electron in the ground state of the hydrogen atom.