Question

A lightly damped oscillator with a frequency ($\omega$) is set in motion by harmonic driving force of frequency $(n)$. When $n<\omega$, then response of the oscillator is controlled by

• A. oscillator frequency
• B. spring constant
• C. damping coefficient
• D. inertia of the mass.

Answer 1

Answer: (B)

Given: Frequency of damped oscillator $=\omega ;$ Frequency of harmonic driving force $=n$ and $n<\omega .$
We know that if $n<\omega$, then vibrations are nearly in phase with the impressed force or the response of the oscillator is controlled by spring constant.