What is the energy in eV requried to excite the electron from n=1 to n=2 state in hydrogen atom? (n=principal quantum number)

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

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

Energy E of a hydrogen atom with principal quantum number n is given by E_n=-13.6/n^2 eV . The energy of photon ejected when the electron jumps from n=3 state to n=2 state of hydrogen is approximately

Which ofthe following curves may represent the energy of electron in hydrogen atom as a function of principal quantum number n:

Which of the plots shown in the figure represents speed (v_n) of the electron in a hydrogen atom as a function of the principal quantum number (n)?

Energy of a hydrogen atom with principal quantum number n is shown by E = (-13.6)/(n^(2)) eV . The energy of a photon ejected when the electron jumps from n = 3 state to n = 2 state of hydrogen is approximately.