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Echo Tube | Science Theme Park | GyanPro

GyanProAugust 13, 2021

SCIENCE PARK

Interactive Science exhibits, ideated and fabricated to inclucate and invigorate the young minds about Science !!


Click here for Model Explanation

Echo Tube

Here is a long tube installed with one end closed. At the open end make a short, low noise.

What did you observe? 
You can hear a clear echo of your voice.

The science behind it :
For getting a clear echo, there must be a minimum time lag of 1/10th of a second between the original sound and its echo.The velocity of sound is 340m/s. The length of the tube is 18 meters. The sound wave travels 36 meters totally. The sound wave takes more than 1/10th of a second to cross the total length of the tube and return to our ears.

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