1H35Cl की मूलभूत कंपन विधा (fundamental vibration mode) 2886 cm-1 पर देखी जाती है। यह मानते हुए कि बल नियतांक (force constant) समान रहता है, 2H35Cl (ड्यूटेरियम क्लोराइड) की संगत विधा की तरंग संख्या (wavenumber) लगभग कितनी होगी?

The bond dissociation energy of the OH molecule is 4.18 eV with a rotational constant of 18.8 cm-1. For rotationally induced dissociation, the minimum value of the rotational quantum number J is closest to:

Consider an emission line of wavelength λ = 550 nm of Argon (A = 40, Z = 18) at a temperature of 400 K. The full Doppler width of the emission line will be closest to: