If 9.9 eV energy is supplied to a hydrogen atom then the number of spectral lines emitted will be

The number of spectral lines in hydrogen atom are

When an electron is excited to n^(th) energy state in hydrogen , the posssible number of spectral lines emitted are

When an electron is excited to n^(th) energy state in hydrogen, the possible number of spectral lines emitted are

When an electron is excited to n^(th) energy state in hydrogen, the possible number of spectral lines emitted are

The ionisation energy of hydrogen atom is 13.6 eV. The hydrogen atom in the ground state is excited by monochromatic radiation of photon energy 12.1 eV. According to Bohr's theory the number of spectral lines emitted are

If each hydrogen atom in the ground state, 1.0 inole of H atoms are excited by absrobing photons of energy 8.4 eV, 12.09 eV and 15.0 eV of energy, then the number of spectral lines emitted is equal to

Number of spectral lines in hydrogen atom is