Question 4
An object is vibrating at 50 Hertz. What is its time period?

(a) 0.02 s
(b) 2 s
(c) 0.2 s
(d) 20.0 s

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Solution

Time period $= \frac{1}{f r e q u e n c y}$
$T = \frac{1}{50} = 0.02 s$

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