JEE Advanced2010PhysicsAtomic PhysicsActual
Paragraph: The key feature of Bohr's theory of spectrum of hydrogen atom is the quantization of angular momentum when an electron is revolving around a proton. We will extend this to a general rotational motion to find quantized rotational energy of a diatomic molecule assuming it to be rigid. The rule to be applied is Bohr's quantization condition. Question: It is found that the excitation frequency from ground to t
Options
- A2.76 10⁻⁴⁶ ~kg - m ^2
- B1.87 10⁻⁴⁶ ~kg - m ^2
- C4.67 10⁻⁴⁷ ~kg - m ^2
- D1.17 10⁻⁴⁷ ~kg - m ^2
Correct answer
B. 1.87 10⁻⁴⁶ ~kg - m ^2
Step-by-step solution
gathered h v=K₂-K₁= 3 h^2 8 ^2 I I= 3 h 8 ^2 f = 3 2 10⁻³⁴ 8 ^2 4 10¹¹ gathered =1.87 10⁻⁴⁶ ~kg - m ^2 The correct answer is (b).