Q 11-13-034NEETJEE MainEasy
A system with natural frequency $f_0$ is driven by a periodic force of frequency $f$. The amplitude of the forced oscillations is largest when
Answer: (D) $f = f_0$
Resonance occurs when the driving frequency equals the natural frequency; the amplitude is then largest (limited only by damping).
Solution by Sreeraj P, M.Sc Physics