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Important Chemistry Formulas For NEET 2025 Exam- Topic-wise Formulas PDF

Pressure In A Fluid MCQ - Practice Questions with Answers

Edited By admin | Updated on Sep 25, 2023 25:23 PM | #NEET

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  • 14 Questions around this concept.

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The dimensional formula of angular velocity is equal to?

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Pressure in a fluid
  • Fluids- 

Fluids are the substances which began to flow when an external force is applied to it.

Fluids examples are liquids and gases.

Fluids don't have their own shape but they take shape of the containing vessel.

In Hydrostatic branch we study fluids which are at rest with respect to containing vessel.

While in Hydrodynamics we study fluids which are in motion with respect to containing vessel. For example study of flowing water from the tap comes under Hydrodynamics.

          Ideal fluids-  Assumption

  1. It is Incompressible- Means the density and the specific volume of the fluid do not change during the flow.

  2. It is Non-viscous- Layers of fluids does not exert any tangential force (especially friction force)  on each other. And A true "non-viscous" fluid would flow along a solid wall without any slowing down because of friction

  • Pressure- 

1. Normal force exerted by liquidfluid at rest per unit Area of the surface is called pressure of a liquidffluid.

If F is the normal force acting on a surface area A in a container with liquid.

P=FA

2. Units of pressure is N/m2 or Pascal (S.l) and dyne /cm2 (C.G.S)
3. The dimension of pressure is ML1T2
4. Atmospheric pressure- The pressure exerted by the atmosphere is called atmospheric pressure. 1 atm is the value of atmospheric pressure on the surface of the earth at sea level.
And 1 atm=1.01×105 N/m2=1.01×105Pascal=1.01 bar =760 torr
So Relation between bar and Pascal is 1 bar =105 Pa

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Pressure in a fluid

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Pressure in a fluid

Physics Part II Textbook for Class XI

Page No. : 251

Line : 19

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