A liquid in a cylindrical vessel of radius $0.05 m$ is rotated along with the vessel about its axis with a speed of $4 π r a d s^{- 1}$ . The rise in liquid level will be nearly:

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Important Questions on Motion in Fluids : Viscosity

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11th ICSE

IMPORTANT

ISC Physics Class XI Part 1>Chapter 17 - Motion in Fluids : Viscosity>FOR DIFFERENT COMPETITIVE EXAMINATIONS>Q 11

The figure shows vertical sections of four wings. Which wing will experience maximum uplift?

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ISC Physics Class XI Part 1>Chapter 17 - Motion in Fluids : Viscosity>FOR DIFFERENT COMPETITIVE EXAMINATIONS>Q 14

A tank has an orifice near its bottom. The volume of the liquid flowing per second out of the orifice does not depend upon:

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11th ICSE

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ISC Physics Class XI Part 1>Chapter 17 - Motion in Fluids : Viscosity>FOR DIFFERENT COMPETITIVE EXAMINATIONS>Q 16

Two solid spheres $A$ and $B$ of equal volumes but of different densities $d_{A}$ and $d_{B}$ are connected by a string. They are fully immersed in a fluid of density $d_{F}$ . They get arranged into an equilibrium state as shown in the figure with a tension in the string. The arrangement is possible only if:

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ISC Physics Class XI Part 1>Chapter 17 - Motion in Fluids : Viscosity>FOR DIFFERENT COMPETITIVE EXAMINATIONS>Q 17

People living in houses far away from the municipal tank often find it difficult to get water on the top floor even if it is situated at lower level than the level of water in the tank. The reason for this is:

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ISC Physics Class XI Part 1>Chapter 17 - Motion in Fluids : Viscosity>FOR DIFFERENT COMPETITIVE EXAMINATIONS>Q 18

The velocity of falling raindrops attains a limiting value, because of:

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ISC Physics Class XI Part 1>Chapter 17 - Motion in Fluids : Viscosity>FOR DIFFERENT COMPETITIVE EXAMINATIONS>Q 19

A small lead ball is falling freely in a viscous liquid. The velocity of the ball:

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