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Oscillatory Motion

A pendulum ha...

Question

A pendulum has a time period of 1.5 s. How many oscillations will it complete in 10.5 seconds?

A

5

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B

8

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C

7

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D

6

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Solution

The correct option is C 7
$T i m e t a k e n t o c o m p l e t e o n e o s c i l l a t i o n = 1.5 s T h e r e f o r e i n 10.5 s, t h e p e n d u l u m w i l l c o m p l e t e, N u m b e r o f o s c i l l a t i o n s = \frac{10.5}{1.5} = 7 o s c i l l a t i o n s$

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