S.I unit of frequency is_________________?
Correct answer: C. Hertz
- A. Vibration S-2
- B. Radian
- C. Hertz
- D. ms-1
Explanation
Frequency is the number of complete vibrations per second, and its SI unit is hertz (Hz), equivalent to s^-1. Radian measures angular displacement, not the number of cycles per second, so it is the likely mistaken choice.
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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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