JAMB Physics 2011 Objective — Question 30
Question 30 of 49 from the Joint Admissions and Matriculation Board (JAMB) Physics 2011 Objective paper, with the correct answer and a full explanation.
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A cannon is fired from town X. After how long was the sound heard at a town Y 4.95 km away? [Velocity of sound in air = 330ms⁻¹]
- A. A. 12s
- B. B. 15sCorrect
- C. C. 30s
- D. D. 10s
Explanation
Distance = 4.95km = 4950m. Time = Distance/Speed = 4950/330 = 15s.
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