The phase of SHM describes________________?
Correct answer: C. Both displacement and direction of motion
- A. Displacement only
- B. The direction of motion only
- C. Both displacement and direction of motion
- D. Neither displacement nor direction of motion
Explanation
The phase of SHM specifies the particle's state at a particular instant, including its displacement and the direction of its motion through the sign of velocity. Thus it describes both displacement and direction of motion. Students may choose a by treating phase as position only, but the same displacement can occur while moving in opposite directions.
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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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