In which liquid, the terminal velocity of an object will have lesser value-benzene or honey?
The terminal velocity of honey will be lesser because the coefficient of viscosity of honey is greater than that of benzene.
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Is it necessary to apply some driving force to maintain the flow of liquid through pipe?
Yes, it is necessary to apply some driving force to maintain the flow of liquid through the pipe. The viscous force between the different layers of the liquid will retard the motion of the liquid and flow stops after certain distance.
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What are practical applications of Stoke’s law?
Practical application of stoke's law are used in determining:
1. the radius of liquid drop, and 2. Coefficient of viscosity of liquids.
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State Stoke’s law.
Stoke’s law states that the viscous force acting on a spherical body of radius 'r' moving with velocity 'v' in viscous media of viscosity 'η' is given by,