If in a gaseous sample of one mole of hydorgen atoms, the electron in every `H` atom is present in the `5th` orbit, then how many spectral lines would appear in its emission spectrum?

If in a gaseous sample of one mole of H atoms in the ground state the electron in very H atom is excited to the 5th orbit, then how many spectral lines would appear in its absorption spectrum?

How many spectral series appear in the emission spectrum of atomic hydrogen?

The electron in the Hydrogen atom is excited to the 4th orbit. Number of spectral lines expected in the emission is

The electron in the Hydrogen atom is excited to the 5^(th) orbit, the number of spectral lines it is expected to emit is

The electron in the Hydrogen atom is excited to the 5^(th) orbit, the number of spectral lines it is expected to emit is

An electron of H_1^1 atom is on the 4th excited state. How many spectrum can be observed?

When the electron in the 'H' atom jumps from the fifth orbit to the second orbit, the spectral line emitted is found in ---- region.

The electron in hydrogen atom in a sample is in n^(th) excited state, then the number of differrent spectrum lines obtained in its emission spectrum will be