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Physics - Rotation Question with Solution | TestHub

PhysicsRotationRotational KinematicsHard2 minPYQ_2020
PhysicsHardsingle choice

A cylindrical vessel containing a liquid is rotated about its axis so that the liquid rises at its sides as shown in the figure. The radius of vessel is 5 cm and the angular speed of rotation is ω rad s-1. The difference in the height, h in cm of liquid at the Centre of vessel and at the sides of the vessel will be :

 

Question diagram: A cylindrical vessel containing a liquid is rotated about it

Options:

Answer:
C
Solution:

ρdrω2r=ρgdh

ω20Rr dr=g0hdh

ω2R22=gh

 h=ω2R22g=25ω22g cm.

Stream:JEESubject:PhysicsTopic:RotationSubtopic:Rotational Kinematics
2mℹ️ Source: PYQ_2020

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