Physics - Modern Physics Question with Solution | TestHub

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: In a CO molecule, the distance between $\mathrm{C}$ (mass $=12\mathrm{amu}$ ) and $\mathrm{O}$ (mass = $16\mathrm{amu}$ ), where $1\mathrm{amu}=\frac{5}{3}\times 10^{-27}\mathrm{kg}$, is close to