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On Which Day, a Hot Day Or a Cold Day, an Echo is Heard Sooner ? Give Reason for Your Answer. - Science

Short Note

On which day, a hot day or a cold day, an echo is heard sooner ? Give reason for your answer.

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Solution

An echo is heard sooner on a hot day because the speed of sound in air increases with increase in temperature of the propagating medium. Therefore, the speed of sound in air is faster on a hot day and thus echo is heard sooner.

Concept: Echoes
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APPEARS IN

Lakhmir Singh Science Class 9 Physics
Chapter 5 Sound
Short Answers | Q 38 | Page 207
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