If the fundamental frequency of vibration of a string fixed both ends is 50Hz, the fourth harmonic will be:
Correct answer: A. 200Hz
- A. 200Hz
- B. 150Hz
- C. 12.5Hz
- D. 250Hz
Explanation
Since in case of string fixed at both ends harmonics are integral multiple of fundamental frequency, fn =n(f)So, for fourth harmonic, f4 = 4(50) f4 = 200HzHence, option A 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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