The number of hyperfine components observed in the electronic transition $${}^2{p_{\frac{1}{2}}} \to {}^2{s_{\frac{1}{2}}}$$ of an atom with nuclear spin $$\frac{1}{2}$$ is
A. 3
B. 4
C. 6
D. 5
Answer: Option A
A. 3
B. 4
C. 6
D. 5
Answer: Option A
All vibrations producing a change in the electric dipole moment of a molecule yield
A. Raman spectra
B. Infrared spectra
C. Ultra-violet spectra
D. X-ray spectra
A. $$\frac{{3{g_1}e{H_0}}}{{2\pi {m_p}}}$$
B. $$\frac{{3{g_1}e{H_0}}}{{4\pi {m_p}}}$$
C. $$\frac{{{g_1}e{H_0}}}{{2\pi {m_p}}}$$
D. $$\frac{{{g_1}e{H_0}}}{{4\pi {m_p}}}$$
A. P and Q
B. P, R and T
C. P, S and T
D. Q and R
The hyperfine structure of Na(32P3/2) with nuclear $$l$$ = 3/2 has
A. 1 state
B. 2 states
C. 3 states
D. 4 states
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