JAMB Physics 2021 Objective — Question 39
Question 39 of 40 from the Joint Admissions and Matriculation Board (JAMB) Physics 2021 Objective paper, with the correct answer and a full explanation.
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Balance wheel of wrist-watch makes 90 revolutions in 10 s. Frequency:
- A. 9 HzCorrect
- B. 0.111 Hz
- C. 3 Hz
- D. 5 Hz
Explanation
f=90/10=9 Hz.
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