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JEE Main practice questions

NTA-style Physics, Chemistry and Maths MCQs with solutions. 2,688 questions in the bank.

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  1. 1An ideal fluid flows (laminar flow) through a pipe of non-uniform diameter. The maximum and minimum diameters of the pipes are 6.4 cm and…Physics· Mechanical Properties of Fluids· Moderate
  2. 2When a capillary tube is dipped in a liquid, the liquid rises to a height h in the tube. The free liquid surface inside the tube is…Physics· Mechanical Properties of Fluids· Moderate
  3. 3A small ball of mass m is released from rest from a height h above the liquid surface. The density of ball is $\frac{\rho}{3}$: (assume no…Physics· Mechanical Properties of Fluids· Moderate· figure
  4. 4A container is filled with a liquid of density ρ. Container is accelerating on a horizontal surface with acceleration $\frac{3g}{4}$…Physics· Mechanical Properties of Fluids· Moderate· figure
  5. 5Figure shows a capillary tube C dipped in a liquid that wets it. The liquid rises to a point A. If we blow air through the horizontal tube…Physics· Mechanical Properties of Fluids· Moderate· figure
  6. 6The speed of water flowing out of the orifice before the cylinder kept inside the tankPhysics· Mechanical Properties of Fluids· Easy· figure
  7. 7A container of a large uniform cross-sectional area A resting on a horizontal surface holds two immiscible, non-viscous and incompressible…Physics· Mechanical Properties of Fluids· Moderate· figure
  8. 8An open rectangular tank of height 3m and length and width respectively 5m and 3m contains water up to height 2m. It is accelerated…Physics· Mechanical Properties of Fluids· Moderate· figure
  9. 9The speed of water flowing out of orifice after the cylinder is kept inside itPhysics· Mechanical Properties of Fluids· Moderate· figure
  10. 10In the figure shown cross-section area of holes are same and very small in comparison to area of cross-section of water tank: (tanks are…Physics· Mechanical Properties of Fluids· Moderate· figure
  11. 11A non-viscous fluid of density [IMAGE] is flowing in a tube as shown in figure. Area of sectionPhysics· Moderate· figure
  12. 12For a fluid which is flowing steadily, the level in the vertical tubes is best represented byPhysics· Mechanical properties of liquid· Moderate
  13. 13The pressure gauge reading in meter of water column shown in the given figure will bePhysics· Mechanical properties of liquid· Moderate· figure
  14. 14In a cylinder-piston arrangement, air is under a pressure P_1. A soap bubble of radius r lies inside the cylinder, soap bubble has surface…Physics· Mechanical Properties of Fluids· Moderate· figure
  15. 15The densities of wood and benzene at 0°C are$\ 880{kgm}^{- 3}$and $\ 900\ {kgm}^{- 3}$, respectively. The coefficients of volume expansion…Physics· Mechanical Properties of Fluids· Moderate· figure
  16. 16A vertical capillary tube with inner radius 0.5 mm, is submerged into water so that the length of its part above the water surface is h =…Physics· Mechanical Properties of Fluids· Moderate
  17. 17A vessel contains two immiscible liquids of densities $\rho_{1} = 1000\ {kgm}^{- 3}$ and $\rho_{2} = 1500\ {kgm}^{- 3}$. A solid block of…Physics· Mechanical Properties of Fluids· Moderate· figure
  18. 18Two immiscible liquids are poured in a U-tube having densities $\rho_{1} = 1.0 \times 10^{3}\ kg/m^{3}$ and $\rho_{3} = 3.0 \times 10^{3}\…Physics· Mechanical Properties of Fluids· Moderate· figure
  19. 19A container filled with viscous liquid is moving vertically downwards with constant speed [IMAGE]. At the instant shown, a sphere of radius…Physics· Mechanical Properties of Fluids· Moderate· figure
  20. 20The surface tension of a liquid is 5 Newton per meter. If a film of this liquid is held on a ring of area $0.02m^{2}$, if its surface…Physics· Mechanical Properties of Fluids· Moderate
  21. 21A thin horizontal movable plate is separated from two fixed horizontal plates [IMAGE] and [IMAGE] by two highly viscous liquids of…Physics· Mechanical Properties of Fluids· Moderate· figure
  22. 22A U tube filled with a liquid is accelerating horizontally with an acceleration a. The acceleration (ms^-2) of the tube isPhysics· Mechanical Properties of Fluids· Moderate· figure
  23. 23A string is holding a solid block below the surface of the liquid as shown in figure. If the system is given an upward acceleration a, then…Physics· Mechanical Properties of Fluids· Moderate· figure
  24. 24A small spherical droplet of density d is floating exactly half immerse in a liquid of density ρ and surface tension T. The radius of the…Physics· Mechanical Properties of Fluids· Moderate· figure
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