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cestrela7 [59]
2 years ago
5

A sound is produced at one extremity of a metallic pipe of 1000 m of length. A person being at

Physics
1 answer:
prohojiy [21]2 years ago
6 0

The sound was repeated because of the phenomenon of echo. The speed of sound in the metal is 800 m/s.

Echo results from the reflection of sound waves. The reason why a sound may be heard twice owes to the phenomenon of reflection which leads to echo.

To determine the speed of sound in the metal;

Length of metal = 1000 m

Time taken between the two sounds = 2.5 s

Using the formula;

V = 2d/t

V = 2(1000)/2.5

V = 800 m/s

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