Atomic And Molecular Physics - Study Mode
[#1] All vibrations producing a change in the electric dipole moment of a molecule yield
Correct Answer
(B) Infrared spectra
[#2] A piece of paraffin is placed in a uniform magnetic field H 0 . The sample contains hydrogen nuclei of mass m p , which interact only with external magnetic field. An additional oscillating magnetic field is applied to observe resonance absorption. If g 1 is the g-factor of the hydrogen nucleus, the frequency at which resonance absorption takes place, is given by
Correct Answer
(D) $$frac{{{g_1}e{H_0}}}{{4pi {m_p}}}$$
[#3] Consider the following statements about molecular spectra: P. CH 4 does not give pure rotational Raman lines Q. SF 6 could be studied by rotational Raman spectroscopy R. N 2 shows infrared absorption spectrum S. CH 3 CH 3 shows vibrational Raman and infrared absorption lines T. H 2 O 2 shows pure rotational spectrum Choose the right combination of correct statements.
Correct Answer
(C) P, S and T
[#4] The hyperfine structure of Na(3 2 P 3/2 ) with nuclear $$l$$ = 3/2 has
Correct Answer
(D) 4 states
[#5] The number of hyperfine components observed in the electronic transition $${}^2{p_{frac{1}{2}}} o {}^2{s_{frac{1}{2}}}$$ xa0of an atom with nuclear spin $$frac{1}{2}$$ is
Correct Answer
(A) 3