Question Detail
Question
When an external forcing frequency applied to a vibrating body equals the natural frequency of the system, causing a very large amplitude of vibration, this phenomenon is called what?
Correct Answer
Option D is the correct answer.
Detailed Explanation
Page 10 describes resonance: 'If we could vary the frequency of this force, then when the forcing frequency is equal to the natural frequency of the system, the amplitude of vibration becomes very large and the body is said to be in resonance.'
Hint
This effect is often associated with the 'tuning' of systems to specific frequencies.