For an under damped harmonic oscillator, resonance
A. occurs when excitation frequency is greater than undamped natural frequency
B. occurs when excitation frequency is less than undamped natural frequency
C. occurs when excitation frequency is equal to undamped natural frequency
D. never occurs
Answer:C
For an under damped harmonic oscillator, resonance
A. occurs when excitation frequency is greater than undamped natural frequency B. occurs when excitation frequency is less than undamped natural frequency C. occurs when excitation frequency is equal to undamped natural frequency D. never occurs