A hydrogen atom rises from its n = 1 state to the n = 4 state by absorbing energy. If the potential energy of the atom in n = 1 state be –13.6 eV, thencalculate : potential energy in n = 4 state.
Correct option is
The energy of the nth level of hydrogen atom is given by
Where R is Rydberg’s constant, h is Planck’s constant and c is speed of light. Thus, the energy of the lowest level (n = 1) is given by
The energy of the fourth-level (n = 4) is
Here E1 = –13.6 eV. So, energy in the state n = 4 is
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