The question is: Second's pendulum has frequency equal to?
Correct answer: A. 0.5 Hz
- A. 0.5 Hz
- B. 1 Hz
- C. 2 Hz
- D. 4 Hz
Explanation
A second's pendulum takes two seconds to complete one full oscillation. This means its time period (T) is 2 seconds.Therefore, the frequency (f) is:f = 1/T = 1/2 = 0.5 Hz
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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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