Question
Find the energy of third stationary orbit of Bohr's model of hydrogen atom if the energy of ground state is -E J
MHT CET
Chemistry
Structure of Atom
2026
MHT CET 2026 (17 April Shift 2)
MHT CET Chemistry Question (2026) — Solution
Options
- A. - E 2 J
- B. - E 4 J
- C. - E 9 J
- D. - E 16 J
Answer
C. - E 9 J
Step-by-step solution
The energy of the n-th Bohr orbit of a hydrogen atom is given by E_n = E_1 n^2 Given that the energy of the ground state (n=1) is E_1 = -E For the third stationary orbit, n=3 Substituting the values, we get E_3 = -E 3^2 = - E 9 J Answer: - E 9 J
Related: Chemistry — Structure of Atom · All PYQ Banks