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ICSE Class 10 Answered

Simran says it is possible to detect the filling of a bottle under a tap by hearing it's sound at a distance . Justify her.  
Asked by shrutsureja | 01 Oct, 2018, 06:36: PM
answered-by-expert Expert Answer
unfilled enclosed volume of bottle works like a cavity resonator whose frequency of resonance is inversly proportional to the square root of volume.
As the water is filling up, volume decreases frequency of sound increases. when the bottle is completely filled, there is no cavity resonator and the sound completely different. So by detecting the difference of sound, we can detect the filling of bottle.
Answered by Thiyagarajan K | 02 Oct, 2018, 10:20: PM

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ICSE 10 - Physics
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