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An echo is heard in 3 s. What is the distance of the reflectin... - Science
Question
An echo is heard in 3 s. What is the distance of the reflecting surface from the source, given that the speed of sound is 342 m s–1?
Answer
Given:
Speed of sound (
v) =342 \text{ m/s}Time taken for echo (
t) =3 \text{ s}
Formula:
Distance (d) = \frac{\text{Speed} \times \text{Time}}{2}
(Divided by 2 because the sound travels to the surface and comes back).
Calculation:
d = \frac{342 \times 3}{2}d = \frac{1026}{2}d = 513 \text{ m}
Answer: The distance of the reflecting surface is 513 \text{ m}.