Which wavelength will be emitting by a sample of atomic hydrogen gas (in ground state) if electron of energy `12.5eV` collide with the atoms of the gas?

Electrons having kinetic energy 30 eV are made to collide with atomic hydrogen gas (in ground state) and 42.5% of electron energy is used to excite the hydrogen wavelength in emission spectra are

When an electron in the hydrogen atom in ground state absorb a photon of energy 12.1eV , its angular momentum

A hydrogen atom in ground state absorbs 12.09 eV of energy . The orbital angular momentum of the electron

An electron with kinetic energy 5eV is incident on a hydrogen atom in its ground state.The collision

An electron with kinetic energy 10 eV is incident on a hydrogen atom in its ground state. The collision

The de-Broglie wavelength of an electron in the ground state of the hydrogen atom is

A: If a beam of photons of energy 10.0 eV each is incident on a sample of hydrogen gas containing all atoms in the ground state, then the beam of the photons is completely transmitted through the gas without absorption. R: The minimum energy required by an electron to make a transition to an excited state is 10.2 eV .

Total energy of an electron in the hydrogen atom in the ground state is -13.6 eV. The potential energy of this electron is