A right circular cylinder open at the top is filled with liquid and rotated about its vertical axis at such a speed that half the liquid spills out, then the pressure intensity at the center of bottom is | Fluid Mechanics Questions

a)    zero
b)    one-fourth  its  value when  cylinder was full
c)    one-half its value when cylinder was full
d)    cannot be predicted from the given data  
Ans: a

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