First slide
Fluid statics
Question

A liquid is kept in a cylindrical vessel. When the vessel is rotated about its axis. The liquid rises at its sides. The radius of the vessel is 0.05 m and the speed of rotation is 2 revolutions per second. The difference in the heights of the liquid at the centre and at the sides of the vessel will be (take g = 10 ms-2 and π2=10 )

Easy
Solution

h=v22g=r2w22g=0.05×4π22×10=25×10-4×16×π22×10=200×10-4m=2cm w=4πrad/sec

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