Q 12-07-017NEETJEE MainEasy
If the frequency of the ac supply is doubled, the reactance of a capacitor
Answer: (D) is halved
$X_C = \dfrac{1}{2\pi fC} \propto \dfrac{1}{f}$, so doubling $f$ halves $X_C$. (An inductor's reactance would double.)
Solution by Sreeraj P, M.Sc Physics