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Physics - Mechanical Properties of Fluids

Practise 41 JEE Advanced previous year questions on Mechanical Properties of Fluids, compiled from papers spanning 2006 to 2026. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty JEE Advanced tests.

Mechanical Properties of Fluids has been asked in 19 of the 27 years of JEE Advanced papers analysed (2000–2026), with 41 questions in all. 22% of them were easy, 32% moderate and 46% tough. Most of its questions came from 2020, with 5 questions that year. In the last three years (2024–2026) it had 4 questions across 6 papers, about 0.7 per paper.

The chapter's 7 topics are not weighted equally: Surface tension (12 questions, 29%), Hydrodynamics (11 questions, 27%), and Archmidies Principle (9 questions, 22%) have been asked the most. Over the last five years the most frequent topics have been Hydrodynamics (3), Surface tension (2), and Viscosity (1). Archmidies Principle has produced the most tough questions (7).

  1. 1Passage: A container of height m, length m and breadth m is made of insulating vertical walls and two large area horizontal metal plates ( a2026 (Paper 2)Efflux of liquid
  2. 2Two large, identical water tanks, 1 and 2, kept on the top of a building of height , are filled with water up to height in each tank. Both t2024 (Paper 1)Hydrodynamics
  3. 3A table tennis ball has radius and mass . It is slowly pushed down into a swimming pool to a depth of below the water surface and then relea2024 (Paper 2)Viscosity
  4. 4A spherical soap bubble inside an air chamber at pressure has a certain radius so that the excess pressure inside the bubble is . Now, the c2024 (Paper 2)Surface tension
  5. 5An incompressible liquid is kept in a container having a weightless piston with a hole. A capillary tube of inner radius 0 . 1 mm is dipped 2023 (Paper 2)Surface tension
  6. 6A cylindrical furnace has height H and diameter D both 1 m . It is maintained at temperature 360 K . The air gets heated inside the furnace 2023 (Paper 2)Hydrodynamics
  7. 7A cylindrical furnace has height H and diameter D both 1 m . It is maintained at temperature 360 K . The air gets heated inside the furnace 2023 (Paper 2)Hydrodynamics
  8. 8A cylindrical tube, with its base as shown in the figure., is filled with water. It is moving down with a constant acceleration a along a fi2021 (Paper 1)Pascal's Law
  9. 9A soft plastic bottle, filled with water of density , carries an inverted glass test-tube with some air (ideal gas) trapped as shown in the 2021 (Paper 2)Archmidies Principle
  10. 10A soft plastic bottle, filled with water of density , carries an inverted glass test-tube with some air (ideal gas) trapped as shown in the 2021 (Paper 2)Archmidies Principle
  11. 11An open-ended U-tube of uniform cross-sectional area contains water (density 10 3 kg m - 3 ). Initially the water level stands at 0 . 29 m f2020 (Paper 1)Pascal's Law
  12. 12As shown schematically in the figure, two vessels contain water solutions (at temperature T ) of potassium permanganate KMnO 4 of different 2020 (Paper 1)Pressure and thrust
  13. 13When water is filled carefully in a glass, one can fill it to a height h above the rim of the glass due to the surface tension of water. To 2020 (Paper 1)Surface tension
  14. 14A train with cross-sectional area S t is moving with speed v t inside a long tunnel of cross-sectional area S 0 S 0 = 4 S t . Assume that al2020 (Paper 2)Hydrodynamics
  15. 15A hot air balloon is carrying some passengers, and a few sandbags of mass 1 kg each so that its total mass is 480 kg . Its effective volume 2020 (Paper 2)Archmidies Principle
  16. 16A cylindrical capillary tube of 0.2 m m radius is made by joining two capillaries T 1 and T 2 of different materials having water contact an2019 (Paper 1)Surface tension
  17. 17A uniform capillary tube of inner radius r is dipped vertically into a beaker filled with water. The water rises to a height h in the capill2018 (Paper 1)Surface tension
  18. 18Consider a thin square plate floating on a viscous liquid in a large tank. The height h of the liquid in the tank is much less than the widt2018 (Paper 2)Viscosity
  19. 19A drop of liquid of radius R = 10 - 2 m having surface tension S = 0.1 4 N m - 1 divides itself into K identical drops. In the process the t2017 (Paper 1)Surface tension
  20. 20Consider two solid spheres P and Q each of density 8 gm c m - 3 and diameters 1 cm and 0.5 cm, respectively. Sphere P is dropped into a liqu2016 (Paper 1)Hydrodynamics
  21. 21Two spheres P and Q of equal radii have densities ρ 1 and ρ 2 , respectively. The spheres are connected by a massless string and placed in l2015 (Paper 2)Archmidies Principle
  22. 22A spherical body of radius R consists of a fluid of constant density and is in equilibrium under its own gravity. If P ( r ) is the pressure2015 (Paper 2)Pressure and thrust
  23. 23A glass capillary tube is of the shape of a truncated cone with an apex angle α so that its two ends have cross-sections of different radii.2014 (Paper 2)Surface tension
  24. 24Paragraph: A spray gun is shown in the figure where a piston pushes air out of a nozzle. A thin tube of uniform cross section is connected t2014 (Paper 2)Hydrodynamics
  25. 25Paragraph: A spray gun is shown in the figure where a piston pushes air out of a nozzle. A thin tube of uniform cross section is connected t2014 (Paper 2)Hydrodynamics
  26. 26A solid sphere of radius R and density is attached to one end of a mass-less spring of force constant k. The other end of the spring is conn2013 (Paper 1)Pressure and thrust
  27. 27A thin uniform cylindrical shell, closed at both ends, is partially filled with water. It is floating vertically in water in half-submerged 2012 (Paper 2)Archmidies Principle
  28. 28Two solid spheres and of equal volumes but of different densities and are connected by a string. They are fully immersed in a fluid of densi2011 (Paper 2)Archmidies Principle
  29. 29Paragraph: When liquid medicine of density is to be put in the eye, it is done with the help of a dropper. As the bulb on the top of the dro2010 (Paper 2)Surface tension
  30. 30Paragraph: When liquid medicine of density is to be put in the eye, it is done with the help of a dropper. As the bulb on the top of the dro2010 (Paper 2)Surface tension
  31. 31Paragraph: When liquid medicine of density is to be put in the eye, it is done with the help of a dropper. As the bulb on the top of the dro2010 (Paper 2)Surface tension
  32. 32A cylindrical vessel of height has an orifice (small hole) at its bottom. The orifice is initially closed and water is filled in it upto hei2009 (Paper 2)Pascal's Law
  33. 33Statement 1 The stream of water flowing at high speed from a garden hose pipe tends to spread like a fountain when held vertically up, but t2008 (Paper 1)Hydrodynamics
  34. 34Paragraph: A small spherical monoatomic ideal gas bubble is trapped inside a liquid of density (see figure). Assume that the bubble does not2008 (Paper 1)Hydrodynamics
  35. 35Paragraph: A small spherical monoatomic ideal gas bubble is trapped inside a liquid of density (see figure). Assume that the bubble does not2008 (Paper 1)Hydrodynamics
  36. 36Paragraph: A small spherical monoatomic ideal gas bubble is trapped inside a liquid of density (see figure). Assume that the bubble does not2008 (Paper 1)Hydrodynamics
  37. 37A glass tube of uniform internal radius has a valve separating the two identical ends. Initially, the valve is in a tightly closed position.2008 (Paper 2)Surface tension
  38. 38Water is filled up to a height in a beaker of radius as shown in the figure. The density of water is , the surface tension of water is and t2007 (Paper 2)Surface tension
  39. 39Paragraph: A wooden cylinder of diameter , height and density is kept on a hole of diameter of a tank, filled with liquid of density as show2006Archmidies Principle
  40. 40Paragraph: A wooden cylinder of diameter , height and density is kept on a hole of diameter of a tank, filled with liquid of density as show2006Archmidies Principle
  41. 41Paragraph: A wooden cylinder of diameter , height and density is kept on a hole of diameter of a tank, filled with liquid of density as show2006Archmidies Principle

Frequently Asked Questions

1.How many questions are available for Mechanical Properties of Fluids?

This chapter includes 41 questions compiled from JEE Advanced papers spanning 2006 to 2026.

2.Are these questions only from JEE Advanced, or from other exams too?

These are JEE Advanced questions specifically for the Mechanical Properties of Fluids chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.

3.Is Mechanical Properties of Fluids an important chapter for JEE Advanced Physics?

Mechanical Properties of Fluids has appeared in 19 of the 21 years of JEE Advanced papers covered here, with 41 questions across 24 papers - about 2 per paper it appears in.

4.What is the difficulty level of Mechanical Properties of Fluids questions in JEE Advanced?

Of the 41 questions analysed for this chapter, 22% are easy, 32% moderate and 46% tough. 2020 had the most, with 5 questions.

5.Which topics in Mechanical Properties of Fluids should I focus on?

These topics have carried the most weightage in Mechanical Properties of Fluids:

  • Surface tension - 12 questions (29%)
  • Hydrodynamics - 11 questions (27%)
  • Archmidies Principle - 9 questions (22%)
  • Archmidies Principle has produced the most tough questions (7).
6.Is Mechanical Properties of Fluids's weightage in JEE Advanced going up or down?

Across all 24 papers analysed, Mechanical Properties of Fluids has averaged about 1.7 questions per paper. In the last three years (2024–2026), that average has fallen, at about 0.7 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.