Physics - Mechanical Properties of Fluids
Practise 35 COMEDK previous year questions on Mechanical Properties of Fluids, compiled from papers spanning 2012 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 COMEDK tests.
Mechanical Properties of Fluids has been asked in 14 of the 15 years of COMEDK papers analysed (2012–2026), with 35 questions in all. 29% of them were easy, 60% moderate and 11% tough. Most of its questions came from 2023, with 6 questions that year. In the last three years (2024–2026) it had 12 questions across 10 papers, about 1.2 per paper.
The chapter's 7 topics are not weighted equally: Surface tension (12 questions, 34%), Hydrodynamics (8 questions, 23%), and Archmidies Principle (5 questions, 14%) have been asked the most. Over the last five years the most frequent topics have been Archmidies Principle (5), Hydrodynamics (5), and Surface tension (4). Surface tension has produced the most tough questions (2).
- 1A small hollow vessel which has a small circular hole of radius r in its base, is immersed in a tank of oil of density and surface tension T09 May, 2026 (S1)Surface tension
- 2Calculate the vapour pressure that can help the formation of a spherical droplet of water of radius m at 22°C. Given: The surface tension of09 May, 2026 (S2)Surface tension
- 3While falling through the air, twenty seven droplets having the same radius 1 mm and terminal velocity combine to form a single drop. What i25 May, 2025 (Shift)Viscosity
- 4A wooden block floats with of its volume submerged in a tank of water. If a denser liquid is poured into the tank, the wooden block floats w10 May, 2025 (S1)Archmidies Principle
- 5A cylindrical tank 0.5 m in radius, rests on a platform 1.5 m high. Initially the tank is filled with water to a height of 2.5 m. A small pl10 May, 2025 (S1)Efflux of liquid
- 6Water from a tap emerges vertically downwards with an initial speed of . The cross-sectional area of the tap is . Assume that the pressure i10 May, 2025 (S2)Hydrodynamics
- 7In to a vessel containing pure water a clean glass tube of radius is held vertically with 12 cm of the tube above the water level. Now the c10 May, 2025 (S3)Surface tension
- 8Water flows from a tap with steady flow, through a cross sectional area of with a speed of . Assume the pressure is constant throughout the 2024 (Afternoon Shift)Hydrodynamics
- 9Modulus of rigidity of an incompressible liquid is2024 (Afternoon Shift)Viscosity
- 10What is the relation obeyed by the angles of contact and of 3 liquids of different densities and respectively ) when they rise to the same c2024 (Evening Shift)Surface tension
- 11A hydraulic automobile lift is designed to lift cars with a maximum mass of 3000 kg . The area of cross-section of the piston carrying the b2024 (Memory Based)Pressure and thrust
- 1264 rain drops of the same radius are falling through air with a steady velocity of . If the drops coalesce, the terminal velocity would be2024 (Morning Shift)Viscosity
- 13Water from a tap of cross-sectional area , falls vertically downwards at . The cross sectional area of the stream, below the tap is (assume 2023 (Evening Shift)Hydrodynamics
- 14A spherical metal ball of density ' ' and radius ' ' is immersed in a liquid of density ' '. When an electric field is applied in the upward2023 (Evening Shift)Archmidies Principle
- 15A block of wood floats in water with th of its volume submerged. If the same block just floats in a liquid, the density of the liquid is in 2023 (Memory Based)Archmidies Principle
- 16The speeds of air-flow on the upper and lower surfaces of a wing of an aeroplane and , respectively. If is the cross-sectional area of the w2023 (Memory Based)Pressure and thrust
- 17The speeds of air-flow on the upper and lower surfaces of a wing of an aeroplane are and , respectively. If is the cross-sectional area of t2023 (Morning Shift)Hydrodynamics
- 18A block of wood floats in water with th of its volume submerged. If the same block just floats in a liquid, the density of the liquid is (in2023 (Morning Shift)Archmidies Principle
- 19A raft of density and mass floats in water. How much weight can be put on the raft to make it just sink?2022Archmidies Principle
- 20Water is poured in a tank through a cylindrical tube of area of cross-section and ejecting water at a constant speed . The tank contains a h2022Hydrodynamics
- 21According to Pascal's law, pressure in a fluid at rest is the same at all points, if2021Pascal's Law
- 22The surface tension of a liquid at its boiling point2021Surface tension
- 23A ball floats on the surface of water in a container exposed to the atmosphere. When the container is covered and the air is partially remov2020Pressure and thrust
- 24A frame made of metallic wire enclosing a surface area is covered with a soap film. If the area of the frame of metallic wire is reduced by 2020Surface tension
- 25A fluid is in streamline flow across a horizontal pipe of variable area of cross-section. For this which of the following statements is corr2020Hydrodynamics
- 26A thread is tied slightly loose to a wire frame as in figure and the frame is dipped into a soap solution and taken out. The frame is comple2019Surface tension
- 27From the adjacent figure, the correct observation is2017Pressure and thrust
- 28If a liquid does not wet glass, its angle of contact is2017Surface tension
- 29With the addition of impurities, surface tension of a liquid2016Surface tension
- 30Viscosity decreases with increase in temperature is the reason for2016Viscosity
- 31A soap bubble of radius is blown up to form a bubble of radius under isothermal conditions. If is the surface tension of soap solution, then2015Surface tension
- 32Under a constant pressure head, the rate of flow of orderly volume flow of liquid through a capillary tube is . If the length of the capilla2015Hydrodynamics
- 33Two small drops of mercury, each of radius , coalesce to form a single large drop of radius . The ratio of the total surface energies before2014Surface tension
- 34A thread is tied slightly loose to a wire frame as shown in figure and the frame is dipped into a soap solution and taken out. The frame is 2013Surface tension
- 35Which of the following cannot be explained on the basis of Bernoulli's principle?2012Hydrodynamics
Frequently Asked Questions
1.How many questions are available for Mechanical Properties of Fluids?
This chapter includes 35 questions compiled from COMEDK papers spanning 2012 to 2026.
2.Are these questions only from COMEDK, or from other exams too?
These are COMEDK 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 COMEDK Physics?
Mechanical Properties of Fluids has appeared in 14 of the 15 years of COMEDK papers covered here, with 35 questions across 23 papers - about 2 per paper it appears in.
4.What is the difficulty level of Mechanical Properties of Fluids questions in COMEDK?
Of the 35 questions analysed for this chapter, 29% are easy, 60% moderate and 11% tough. 2023 had the most, with 6 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 (34%)
- Hydrodynamics - 8 questions (23%)
- Archmidies Principle - 5 questions (14%)
- Surface tension has produced the most tough questions (2).
6.Is Mechanical Properties of Fluids's weightage in COMEDK going up or down?
Across all 23 papers analysed, Mechanical Properties of Fluids has averaged about 1.5 questions per paper. In the last three years (2024–2026), that average has fallen, at about 1.2 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.