An electron collides with a hydrogen atom in its ground state and excites it to `n = 3` ,. The energy gives to hydrogen aton n this inclastic collision is [Neglect the recoiling of hydrogen atom]

An electron colliodes with a hydrogen atom in its ground state and excites it to n=3 state . The energy given to the hydrogen atom in this inelastic collision ( neglecting the recoil of hydrogen atom ) is

Hydrogen atom will be in its ground state , if its electrons is in

To excite the hydrogen atom from its ground state to second excited state…. eV energy is required.

An electron with kinetic energy E collides with a hydrogen atom in the ground state. The collision will be elastic

An electron with kinetic energy =E eV collides with a hydrogen atom in the ground state. The collision will be elastic

An electron collides with a fixed hydrogen atom in its ground state. Hydrogen atom gets excited and the colliding electron loses all its kinetic energy. Consequently the hydrogen atom may emit a photon corresponding to the largest wavelength of the Balmer series. The K.E. of colliding electron will be