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A company manufacturing PVC pipes claims...

A company manufacturing PVC pipes claims in an advertisement that the volume of water flowing out through the pipe in a given time is as per the equation `V=KA^2ut` where A is the area of cross section of the pipe, u is the speed of flow, t is the time and K is a dimensionless constant.
Name the principle that can be used to check the dimensional correctness of this equation.

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A company manufacturing PVC pipes claims in an advertisement that the volume of water flowing out through the pipe in a given time is as per the equation V=KA^2ut where A is the area of cross section of the pipe, u is the speed of flow, t is the time and K is a dimensionless constant. Check the equation and state whether the claimis correct.

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