See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

x = E2 – E1   H H H H H H E or, x E 4 E 4E 3E 4x or, E 4 4 3        H 3E 4  energy required to excite the electron from ground state(E1) H H 3E x 4 4x or, E 3    