In hyperfine interaction there is coupling between the electron angular momentum...

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In hyperfine interaction, there is coupling between the electron angular momentum $$\overrightarrow {\bf{J}} $$ and nuclear angular momentum $$\overrightarrow {\bf{I}} $$, forming resultant angular momentum $$\overrightarrow {\bf{F}} $$. The selection rules for the corresponding quantum number F in hyperfine transitions are

A. ΔF = ±2 only

B. ΔF = ±1 only

C. ΔF = 0, ±1

D. ΔF = ±1, ±2

Answer: Option C


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