WAEC Physics 2022 Objective — Question 37
Question 37 of 50 from the West African Examinations Council (WAEC) Physics 2022 Objective paper, with the correct answer and a full explanation.
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A hunter fires a gun at a point 408m away from a cliff. If he hears an echo 2.4s later, determine the speed of sound wave.
- A. 340 ms⁻¹Correct
- B. 380 ms⁻¹
- C. 400 ms⁻¹
- D. 680 ms⁻¹
Explanation
Speed = 2d/t = 2×408/2.4 = 340 ms⁻¹.
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