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A vibrating tuning fork is placed over t...

A vibrating tuning fork is placed over the mouth of a burette filled with water. The tap is opened and the water level gradually falls.
What do you observe ? Name the phenomenon. When does it happen?

Text Solution

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Yes. If the water level in burette falls further, a loud sound will again be heard when the length of air column becomes three times. At this stage again the natural frequency of air column will become equal to the frequency of the vibrating tuning fork and resonance will occur.
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