EASY
11th West Bengal Board
IMPORTANT
Earn 100

A steel ball, a tennis ball and a plastic ball, all of the same size are dropped from a very high tower. Keeping in mind the viscosity and buoyancy of air, in which order they should reach the ground?

Important Questions on Fluid Dynamics

EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 14 - Fluid Dynamics>EXERCISE>Q 55
Why a definite pressure difference is necessary to pass a liquid through a horizontal pipe at constant pressure?
MEDIUM
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 14 - Fluid Dynamics>EXERCISE>Q 56
State Poiseuille's equation for the flow of a viscous fluid through a capillary tube.
EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 14 - Fluid Dynamics>EXERCISE>Q 57
What are fluid current and the fluid resistance of a capillary tube for the flow of a viscous fluid through it? What is the relation between them?
EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 14 - Fluid Dynamics>EXERCISE>Q 58

If several capillary tubes are joined in series to a source of fluid what would be their equivalent fluid resistances?

EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 14 - Fluid Dynamics>EXERCISE>Q 58

If several capillary tubes are joined in parallel to a source of fluid what would be their equivalent fluid resistances?

MEDIUM
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 14 - Fluid Dynamics>EXERCISE>Q 1
State the characteristics of streamline motion. When does a streamline motion turn into turbulent motion? Give a common example of it.
HARD
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 14 - Fluid Dynamics>EXERCISE>Q 2
What is critical velocity of fluid? From dimensional analysis find an expression fur the critical velocity. Define Reynold's number and state its significance.
MEDIUM
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 14 - Fluid Dynamics>EXERCISE>Q 3
What is viscous force ? Explain how this force originates.