A vertical circular cylinder is filled with water and then rotated abo – McqOptions

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1.	A vertical circular cylinder is filled with water and then rotated about its vertical axis at a constant speed such that half the liquid spills out from the open top. At that instant, the pressure at the centre of the bottom should be
A.	atmospheric pressure
B.	sub-atmospheric pressure
C.	one fourth of original value
D.	more than atmospheric pressure
Answer» B. sub-atmospheric pressure

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