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What is the frequency of vibration if the balance wheel of a wrist watch makes...

Physics
JAMB 2008

What is the frequency of vibration if the balance wheel of a wrist watch makes 90 revolutions in 25 s?

  • A. 0.01 Hz
  • B. 0.04 Hz
  • C. 2.27 Hz
  • D. 3.60 Hz
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Correct Answer: Option D
Explanation

Frequency = (No. of revolutions)/ Time = (90)/25 = 3.6 Hz

There is an explanation video available below.

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Explanation Video

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