Sound waves were sent out from a source and after being reflected from an obstacle were received by a sensor placed beside the source. If the waves were received 10 seconds after they were sent out, calculate the distance between the source and the obstacle. (Speed of sound = \(330 m / s\) )
A. \(990 m\) B. \(660 m\) C. \(1320 m\) D. \(1750 m\)
Correct Answer:
Explanation
Given data: \(V=330 m / s , t=10 s\) Required \(D=\) ?orrelating equation $$ \begin{aligned} &V=\frac{2 D}{t}, D=\frac{V t}{2} \\ &D=\frac{330 \times 10}{2}=1650 m \end{aligned} $$
