A wave source produces $10$ oscillations in $100 m s$ . Find the time period of the wave.

1 s

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0.01 s

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10 s

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0.1 s

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Solution

The correct option is B $0.01 s$
Time period is the time needed for complete one cycle of vibration.Here it is given that wave source produces 10 oscillations in 100 ms. So the time period is,
$T = \frac{0.1 s}{10 o s c i l l a t i o n s} = 0.01 s e c o n d$

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