Question

Which of the following statement(s) is/are correct regarding the amplitude vs frequency curve for a driven system?

• A. Smaller the damping, taller and narrower the resonance peak
• B. The amplitude tends to infinity when it equals to natural frequency results in zero damping
• C. The resonant amplitude decreases with increasing damping
• D. Small damping results in driving frequency almost equal to natural frequency

Answer 1

Answer: (A), (B), (C)

Smaller the damping, taller and narrower the resonance peak
The amplitude tends to infinity when it equals to natural frequency results in zero damping
The resonant amplitude decreases with increasing damping

$answer:-$ A,B,C

As you can see in this as the damping is becoming intense amplitude is reducing and at very very low damping amplitude tends to infinity and corresponding frequency will be resonant frequency.

Smaller the damping longer and narrower peak is observed.