- #1
manofdemon
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Homework Statement
The task is to investigate and explain why the sound produced when you tap a cup on its base (whilst its upside down) changes, when the cup is above water, on the surface of the water, and below water.
I am not sure of the theory, although when I carried out the experiment, the noise was deeper when tapped on the surface, then even deeper when tapped below water.
Can somebody please push me in the right direction toward relevant theory explaining this?
Cheers