सोडियम D2 लाइन अवस्था Na(32P3/2) की अतिसूक्ष्म संरचना (hyperfine structure), जिसका नाभिकीय चक्रण I = 32 है, कितने अलग-अलग ऊर्जा स्तरों में विभाजित होती है?

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: