The velocity of sound in air is 330 m/s. Calculate the minimum distance between a source of sound and a reflecting wall, so that a clear echo may be heard. Take the
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What Is An Echo | Reflection Of Sound Waves | DK Find Out
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What is an Echo? How to prevent it? What Causes Echoes at Home? - False Ceiling Manufacturer Company
What is an Echo? How to prevent it? What Causes Echoes at Home? - False Ceiling Manufacturer Company
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![Wave sound wave echo image CG background wallpaper - Stock Illustration [76839879] - PIXTA](https://en.pimg.jp/076/839/879/1/76839879.jpg "Wave sound wave echo image CG background wallpaper - Stock Illustration [76839879] - PIXTA")
Wave sound wave echo image CG background wallpaper - Stock Illustration [76839879] - PIXTA
