In excited H atom when electron drop from `n = 4,5,6` to `n = 1`, there is emission of

An electron in a hydrogen atom is excited from the ground state to the n = 4 state. Predict which of the following statements are true or false : (i) n = 4 is the first excited state. (ii) It takes more energy to ionize (remove) the electron from n = 14 than in the ground state. (iii) The wavelength of light emitted when the electron drops from n = 4 to n = 2 is longer than that from n = 4 to n = 1 . (iv) The wavelength which the atom absorbs in going from n = 1 to n = 4 is the same as emitted when it goes from n = 4 to n = 1 . (v) The electron is farther from the nucleus (on average) in n = 4 than in the ground state.

The energy (in eV) required to excite an electron from n = 2 to n = 4 state in hydrogen atom is

The energy (in W) required to excite an electron from n = 2 to n = 4 state in hydrogen atom

An electron in H atom makes a transition from n = 3 to n = 1 . The recoil momentum of the H atom will be

An electron in H atom makes a transition from n = 3 to n = 1 . The recoil momentum of the H atom will be

An electron in H atom makes a transition from n = 3 to n = 1 . The recoil momentum of the H atom will be

The energy ( in eV ) required to excite an electron from n = 2 to n = 4 state in hydrogen atom is

The energy ( in eV ) required to excite an electron from n = 2 to n = 4 state in hydrogen atom is

In hydrogen atom, electron makes transition from n = 4 to n = 1 level. Recoil momentum of the H atom will be

Total number of spectral lines emitted when an electron jumps from n=5 to n=1 in hydrogen atom is