A vibrator produces 25 waves in 5 seconds. What is its time period?
Correct answer: C. 1/5
- A. 2
- B. 1/2
- C. 1/5
- D. None of the above
Explanation
The time period of a wave is the time taken for one complete oscillation or cycle. It is the reciprocal of the frequency.Here, the vibrator produces 25 waves in 5 seconds. Therefore, the frequency of the vibrator is:Frequency (f) = Number of waves / Time = 25 waves / 5 seconds = 5 HzNow, the time period (T) is:Time period (T) = 1 / Frequency (f) = 1 / 5 Hz = 1/5 seconds
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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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