NEET 2022 · PhysicsEnergy levelsPrevious Year Question
Let T₁ and T₂ be the energy of an electron in the first and second excited states of hydrogen atom, respectively. According to Bohr's model of an atom, the ratio T₁ : T₂ is:
Answer: (D) 9 : 4. Answer: (d) 9 : 4 Solution: First excited state is n=2, second excited state is n=3 (Eₙ = −13.6/n²).
- A.1 : 4
- B.4 : 1
- C.4 : 9
- D.9 : 4✓
Correct Answer
(D) 9 : 4
Solution & Explanation
Answer: (d) 9 : 4 Solution: First excited state is n=2, second excited state is n=3 (Eₙ = −13.6/n²). T₁ : T₂ = (−13.6/2²) : (−13.6/3²) = (1/4) : (1/9) = 9 : 4.
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