Q179 / 225 · JEE Main 2004 · Physics
In forced oscillation of a particle the amplitude is maximum for a frequency $\omega_1$ of the force, while the energy is maximum for a frequency $\omega_2$ of the force, then
- Correct answerA$\omega_1=\omega_2$
- B$\omega_1>\omega_2$
- C$\omega_1 < \omega_2$ when damping is small and $\omega_1>\omega_2$ when damping is large
- D$\omega_1 < \omega_2$
Solution
Both amplitude and energy get maximised when the frequency is equal to the natural frequency. This is the condition of resonance.
$$
\omega_1=\omega_2
$$
Hence, the correct answer is option: 'A'.