Question 96

A Sonar of a ship sends sounds waves of speed 1000 m/s. These waves are reflected back by the ocean floor in 2 seconds. Find the depth (in m) of the ocean floor.

Solution

Speed of sound waves = 1000 m/s

Using, distance = speed $$\times$$ time

= $$1000\times2=2000$$ m

But, this is the total distance travelled by the sound, so the depth is half of this.

=> Depth = $$\frac{2000}{2}=1000$$ m

=> Ans - (C)

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