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) $f = f_0$
Concept. Resonance: forced oscillations are largest when the driving frequency equals the natural frequency.
Step 1. Apply. $f = f_0$.
Answer. $f = f_0$ (Option D).
Solution by Sreeraj P, M.Sc Physics