List of top Physical Chemistry Questions on Rotational, vibrational, electronic and Raman spectroscopy of diatomic and polyatomic molecules asked in GATE CY

The microwave spectrum of gaseous \(\mathrm{HF}\) consists of a series of lines separated by \(41.11\ \mathrm{cm^{-1}}\). The bond length (in \(\mathrm{\mathring{A}}\)) of \(\mathrm{HF}\) is (rounded off to two decimal places).

(Given: Atomic mass (in amu): \(\mathrm{H} = 1.008\), \(\mathrm{F} = 18.998\); \(1\ \mathrm{amu} = 1.661\times10^{-27}\ \mathrm{kg}\); \(h = 6.626\times10^{-34}\ \mathrm{J\,s}\); \(c = 2.998\times10^{8}\ \mathrm{m\,s^{-1}}\))