A sonar echo takes $4.4 s$ to return from a submarine. If the speed of sound in water is $1500 m s^{- 1}$ , then the distance of submarine from the sonar is:

1500 m

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3000 m

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3300 m

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3600 m

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Solution

The correct option is C $3300 m$
$t = 44 s, v = 1500 m / s$
Using $d = \frac{v t}{2} = \frac{1500 \times 4.4}{2} = 3300 m$

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A sonar echo takes 4.4s to return from a submarine. If the speed of sound in water is 1500ms−1, then the distance of submarine from the sonar is:

The correct option is C 3300mt=44s,v=1500m/sUsing d=vt2=1500×4.42=3300m

A sonar echo takes $4.4 s$ to return from a submarine. If the speed of sound in water is $1500 m s^{- 1}$ , then the distance of submarine from the sonar is:

The correct option is C $3300 m$
$t = 44 s, v = 1500 m / s$
Using $d = \frac{v t}{2} = \frac{1500 \times 4.4}{2} = 3300 m$