Displacement of the body in S.H.M is equal to amplitude when the body is at_______________?
Correct answer: C. Extreme position
- A. Mean position
- B. Elsewhere
- C. Extreme position
- D. None
Explanation
In SHM, displacement is measured from the mean position and has its greatest magnitude at either extreme position, where it equals the amplitude. At the mean position, displacement is zero. Students may choose a because the object passes through the mean position, but that is where its displacement is least, not equal to the amplitude.
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About Simple Harmonic Motion
Simple harmonic motion is oscillation in which acceleration is directly proportional to displacement and directed toward the equilibrium position. Work includes displacement, velocity, acceleration, phase, period, frequency, amplitude and energy, with applications to springs and simple pendulums. The restoring force and the conditions for SHM distinguish it from general periodic motion.
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