cse • paper_2 • atomic_molecularcse-2021-subject-06-003
Rotational spectra — UPSC CSE 2021 Physics PYQ
Buy PYQ Solution Manual →The first line in the pure rotational spectrum of HCl appears at 21\mathbin{\cdot}18\,\mathrm{cm}^{-1}. Calculate bond length of the molecule. Given atomic masses of H and Cl are 1.008 and 35.45\,\mathrm{amu}, respectively.
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