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Is it true that an echo is heard sooner in the air than in water?

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True

False

answer is B.

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Detailed Solution

The above statement is false.
The speed of sound in air is about

300 m / s

, and the speed of sound in water is about

1500 m / s

. The speed of sound in water is much more than the speed of sound in air. So, the echo is heard sooner in water as compared to air. Hence, the statement is false.
The correct statement would be an echo is heard sooner in water as compared to air.

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