Mechanical Properties of Fluids for NEET: PYQ trend, NCERT lines NEET repeats, free lecture

Mechanical Properties of Fluids in NEET: the numbers

29NEET / AIPMT questions in our PYQ bank (2013–2025)

12exam years with a question from this chapter

6NCERT lines NEET asked more than once

Topics NEET asks most

Topic	Questions
Surface tension and capillarity	15
Streamline flow and Bernoulli's principle	5
Viscosity and Stokes' law	5
Pressure and Pascal's law	4

NCERT lines NEET asked again and again

Read these lines from your NCERT book twice: NEET has built questions on each of them more than once.

Pressure at a point in a liquid at rest depends only on depth, density and g , not on the vessel's shape or base area. Same level in the same liquid means same pressure .

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A sphere falling in a viscous fluid speeds up until weight balances buoyancy plus drag. After that it moves at constant terminal velocity and the net force is zero .

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Whether a liquid wets a solid is decided by the angle of contact . If θ> 90° the liquid does not wet the surface and it is depressed in a capillary.

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For an incompressible fluid in steady flow the volume passing each section per second is the same, so A₁v₁ = A₂v₂ . Many small holes add up their areas, so the speed through each is lower.

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Along a streamline, where speed is higher the pressure is lower. Wind over a roof makes a pressure difference Δp = (1/2)ρ(v₂² − v₁²) and the net force on the roof is upward .

AIPMT 2015

Excess pressure inside a drop is 2S/R, but a soap bubble has two surfaces, so it is 4S/R . A bigger bubble has less excess pressure , so the pressure falls as it expands.

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Free lecture by Prashant Sir

FLUID MECHANICS L-22 | NEET Physics Crash Course | NCERT Physics Class 11 · 326K views on YouTube

Free NCERT notes for Mechanical Properties of Fluids

How fluids push, flow and stick: pressure and buoyancy, continuity and Bernoulli, viscosity and terminal velocity, surface tension and capillary rise. NEET regularly asks from it, most often on terminal velocity, Bernoulli or continuity, excess pressure and capillary rise.

Read the chapter notes: key NCERT points, graphs, every formula with its meaning, tricks, common mistakes and NEET traps.

FAQ

How many questions come from Mechanical Properties of Fluids in NEET?

Our bank of NEET and AIPMT papers (2013–2025) has 29 questions from Mechanical Properties of Fluids, most of them from Surface tension and capillarity, Streamline flow and Bernoulli's principle, Viscosity and Stokes' law.

Which NCERT line of Mechanical Properties of Fluids has NEET asked the most?

This line has been asked 3 times in NEET/AIPMT: "Pressure at a point in a liquid at rest depends only on depth, density and g, not on the vessel's shape or base area. Same level in the same liquid means same pressure."

Where can I study Mechanical Properties of Fluids for NEET for free?

Prashant Sir's full lecture is free on the NEET Physics Kota YouTube channel, and the chapter notes are free on Dhruv.