The product of the frequency and time period is equal to_________________?
Correct answer: A. 1
- A. 1
- B. 2
- C. 3
- D. 4
Explanation
Frequency and time period are reciprocals: f = 1/T. Therefore fT = (1/T)T = 1, a dimensionless quantity. Students may choose b by remembering the angular-frequency relation ωT = 2π, but the question asks for ordinary frequency, not angular frequency.
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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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