alleryStart learning →A woman shakes a toy spring up and down, creating two complete waves every second. What is the period of each wave?
A2.0 s
B1.0 s
C0.5 s
D0.2 s
Answer & Solution
Correct answer: C. 0.5 s
1. Two waves every second means the frequency is f = 2 per second.
2. Period is the reciprocal of frequency: T = 1/f.
3. Substituting: T = 1 / 2 per second = 0.5 s.
_Source: OpenStax Physics (CC BY 4.0), Ch 13 "Waves and Their Properties", section Calculate the Period and the Wave Velocity of a Toy Spring_
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