At which of the following places, the motion of a simple pendulum become slowest:
Correct answer: B. Karachi
- A. Murree
- B. Karachi
- C. K-2
- D. Peshawar
Explanation
The motion of a simple pendulum depends on the acceleration due to gravity, which in turn depends on the distance from the center of the Earth. The acceleration due to gravity is maximum at the poles and minimum at the equator. Therefore, the motion of a simple pendulum will be slowest at the equator. Since Karachi is closest to the equator among the given options, (b) is correct.
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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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