How many spectral lines are emitted by atomic hydrogen excited to the `n-th` energy level?

How many spectral linears are emitted by atomic hydrgen excited to the nth energy level ?

How many emission spectral lines are possible when hydrogen atom is excited to n^th energy level?

How many spectrual lines are emitted by atomic Hydrogen, when an electron jumps from 5th energy level to ground state ?

How many spectrual lines are emitted by atomic Hydrogen, when an electron jumps from 5th energy level to ground state ?

How many spectral lines are produced in the spectrum of hydrogen atom from 5th energy level?

An electron in an excited hydrogen atom acquired an energy of 12.1 eV. To what energy level did it jump? How many spectral lines may be emitted in the course of the transition to lower energy level? Calculate the corresponding wavelengths.

Find the number of spectral lines in Paschen series emitted by atomic H, when electron is excited from ground state to 7th energy level returns back .