Show that the minimum distance from a sound reflecting surface to hear an echo is
17.2 metres.
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The velocity of sound in dry air is approximately 343 m/s at a temperature of 25 °C. Therefore, thereflecting object must be more than17.2m from the sound source for echoto be perceived by a person located at the source.
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Hey mate ^_^
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Answer:
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=> The velocity of sound in dry air is approximately 343 m/s at a temperature of 25 °C.
=> Therefore, the reflecting object must be more than 17.2m from the sound source for echo to be perceived by a person located at the source.
#Be Brainly❤️
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Answer:
=======
=> The velocity of sound in dry air is approximately 343 m/s at a temperature of 25 °C.
=> Therefore, the reflecting object must be more than 17.2m from the sound source for echo to be perceived by a person located at the source.
#Be Brainly❤️
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