Question

A sound wave sent out from a boat arrives back after 3 seconds. If the speed of sound in water is 1500m/s.How deep is the water.​

Answer 1

Answer:

Let the distance be = x

As SONAR, Echo, (x+x) or 2x

Given, Time = 3 secs

Speed = 1500m/s

Distance = 2x

Now, We know that,

Distance = Speed × Time

= 2x = 3 × 1500

= 2x = 4500

or x = 4500/2

= 2250m (Ans)

Explanation:

Physics Numericals on Sound and Echo

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