Chapter 9: Mechanical Properties of Fluids MCQs | physics Class 11 CBSE

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Chapter 9: Mechanical Properties of Fluids MCQs | physics Class 11 CBSE | ByteNotes.in

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Question 1

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The SI unit of pressure is pascal (Pa). Which of the following is equivalent to 1 Pa?

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Question 2

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A fluid is at rest. The force exerted by the fluid on any surface in contact with it is always

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Question 3

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The pressure at a depth h in a liquid of density ρ open to atmosphere (atmospheric pressure Pa) is

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Question 4

Objective

Three vessels A, B and C of different shapes are connected at the bottom and filled with water until the same height h. The pressure at the bottom of each vessel is

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Question 5

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Pascal's Law states that when pressure is applied to an enclosed fluid, it is transmitted

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Question 6

Objective

In a hydraulic lift, the areas of the small and large pistons are A₁ and A₂ respectively. If a force F₁ is applied on the small piston, the force F₂ on the large piston is

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Question 7

Objective

The gauge pressure at a depth of 10 m in fresh water (ρ = 1000 kg m⁻³, g = 10 m s⁻²) is

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Question 8

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The height of mercury in a barometer at sea level is about 76 cm. If water (density 1000 kg m⁻³) were used instead of mercury (density 13600 kg m⁻³), the height of the water column would be approximately

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Question 9

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The equation of continuity Av = constant for fluid flow is a statement of conservation of

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Question 10

Objective

In steady flow of an incompressible fluid through a pipe of varying cross-section, when the pipe narrows

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Question 11

Objective

Bernoulli's equation P + ½ρv² + ρgh = constant is based on

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Question 12

Objective

Bernoulli's equation is strictly valid for which type of fluid flow?

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Question 13

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According to Torricelli's Law, the speed of efflux from a small hole at depth h in an open tank is

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Question 14

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Dynamic lift on an aircraft wing arises because

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Question 15

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The Magnus effect explains why a spinning ball deviates from its parabolic path. This deviation is caused by

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Question 16

Objective

The viscosity of a liquid with temperature

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Question 17

Objective

The coefficient of viscosity η has SI unit

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Question 18

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Stokes' Law gives the viscous drag force on a sphere of radius a moving at velocity v through a fluid of viscosity η as

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Question 19

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The terminal velocity of a sphere falling through a viscous fluid is proportional to

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Question 20

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Blood is more viscous than water. As temperature rises from 0°C to 37°C, the relative viscosity (η/η_water) of blood

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Chapter 9: Mechanical Properties of Fluids | MCQs

The SI unit of pressure is pascal (Pa). Which of the following is equivalent to 1 Pa?

A fluid is at rest. The force exerted by the fluid on any surface in contact with it is always

The pressure at a depth h in a liquid of density ρ open to atmosphere (atmospheric pressure Pa) is

Three vessels A, B and C of different shapes are connected at the bottom and filled with water until the same height h. The pressure at the bottom of each vessel is

Pascal's Law states that when pressure is applied to an enclosed fluid, it is transmitted

In a hydraulic lift, the areas of the small and large pistons are A₁ and A₂ respectively. If a force F₁ is applied on the small piston, the force F₂ on the large piston is

The gauge pressure at a depth of 10 m in fresh water (ρ = 1000 kg m⁻³, g = 10 m s⁻²) is

The height of mercury in a barometer at sea level is about 76 cm. If water (density 1000 kg m⁻³) were used instead of mercury (density 13600 kg m⁻³), the height of the water column would be approximately

The equation of continuity Av = constant for fluid flow is a statement of conservation of

In steady flow of an incompressible fluid through a pipe of varying cross-section, when the pipe narrows

Bernoulli's equation P + ½ρv² + ρgh = constant is based on

Bernoulli's equation is strictly valid for which type of fluid flow?

According to Torricelli's Law, the speed of efflux from a small hole at depth h in an open tank is

Dynamic lift on an aircraft wing arises because

The Magnus effect explains why a spinning ball deviates from its parabolic path. This deviation is caused by

The viscosity of a liquid with temperature

The coefficient of viscosity η has SI unit

Stokes' Law gives the viscous drag force on a sphere of radius a moving at velocity v through a fluid of viscosity η as

The terminal velocity of a sphere falling through a viscous fluid is proportional to

Blood is more viscous than water. As temperature rises from 0°C to 37°C, the relative viscosity (η/η_water) of blood

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