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A given shaped glass tube having uniform cross section is filled with water and is mounted on a rotatable shaft as shown in figure. If the tube is rotated with a constant angular velocity then:

image

  1. A
    water levels in both sections and go up
  2. B
    water level in section goes up and that in comes down
  3. C
    water level in section comes down and that in it goes up
  4. D
    water levels remain same in both sections

Solution & Step-by-step Explanation

Centrifugal force pushes the liquid outwards. Since the arm lengths are and , the pressure difference .The pressure increase at the outer columns depends on . Since , pressure at is higher than at . However, both will rise compared to the central column, with rising more.
image

image

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A given shaped glass tube having uniform cross section is filled with water and is mounted on a rotatable shaft as shown in figure. If the tube is rotated with a constant angular velocity then:

image
A
water levels in both sections and go up
B
water level in section goes up and that in comes down
C
water level in section comes down and that in it goes up
D
water levels remain same in both sections

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