PhysicsAn echo returned in 3 s. What is the distance of the reflecting surface from the source, given that the speed of sound is 342 m/s?

An echo returned in $3 s$ . What is the distance of the reflecting surface from the source, given that the speed of sound is $342 m / s$ ?

The distance of the reflecting surface from the source is

513 m

.
Given: speed of sound

(v) = 342 m / s

,
time

(t) = 3 s

,
distance

= d

.
Formula:

2 d = v \times t

Putting all the values we get,

d = \frac{(342 \times 3)}{2}

or,

d = 513 m

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