Free physics question bank
Viscosity, Stokes' Law and Terminal Velocity questions with solutions
Practice Properties of solid and fluid for JEE Main, JEE Advanced, NEET, and Classes 11–12. Attempt each question, then open it for the full solution.
Showing 1–10 of 69 questions
- MCQmediumProperties of solid and fluid
A solid sphere of radius r and density ρₛ falls through a liquid of density ρₗ and viscosity η, where ρₛ > ρₗ. Assuming Stokes' law is valid, what is the terminal speed?
Options
JEE MainsNEETJEE Advanced
Open question & full solution → - MCQmediumProperties of solid and fluid
A small metallic sphere of diameter 2 mm and density 10.5 g/cm³ is dropped in glycerine having viscosity 10 Poise and density 1.5 g/cm³ respectively. The terminal velocity attained by the sphere is ________ cm/s.
(π = 22/7 and g = 10 m/s²)
Options
JEE Mains 202623 January Evening Shift
Open question & full solution → - MCQeasyProperties of solid and fluid
A heavy sphere has attained terminal speed while falling through a viscous liquid. Which statement is correct?
Options
JEE MainsNEETJEE Advanced
Open question & full solution → - MCQmediumProperties of solid and fluid
A spherical body of radius r and density σ falls freely through a viscous liquid having density ρ and viscosity η and attains a terminal velocity v₀. Estimated maximum error in the quantity η is :
(Ignore errors associated with σ, ρ and g, gravitational acceleration)
Options
JEE Mains 202621 January Evening Shift
Open question & full solution → - MCQmediumProperties of solid and fluid
Two spheres of equal radius fall through the same viscous liquid and both obey Stokes' law. Their densities are ρ₁ and ρ₂, while the liquid density is ρ. If their terminal speeds are v₁ and v₂, what is v₁/v₂?
Options
JEE MainsNEETJEE Advanced
Open question & full solution → - NumericmediumProperties of solid and fluid
A sphere has terminal speed 10 m/s and Stokes time constant 2 s. Starting from rest, it travels a distance x = N ln2 - 10 metres before reaching half its terminal speed. Find N.
JEE MainsNEETJEE Advanced
Open question & full solution → - Multi-correctmediumProperties of solid and fluid
Which statements about viscosity units and related quantities are correct?
Select all that apply
JEE MainsNEETJEE Advanced
Open question & full solution → - MCQmediumProperties of solid and fluid
A cubical block of side a and density ρ slides down an inclined plane of angle θ with constant speed v. A uniform thin Newtonian liquid film of thickness d and viscosity η separates the block from the plane. Assuming a linear velocity gradient in the film and neglecting all other resistive forces, what is d?
Options
JEE MainsNEETJEE Advanced
Open question & full solution → - MCQeasyProperties of solid and fluid
Stokes' law for the viscous force on a sphere is most reliable under which condition?
Options
JEE MainsNEETJEE Advanced
Open question & full solution → - MCQmediumProperties of solid and fluid
A spherical ball of radius r and density ρₛ is released from rest at height h above the free surface of a liquid of density ρₗ. Air resistance is negligible. Immediately after entering the liquid, the ball continues with constant speed and Stokes' law is valid. What is the coefficient of viscosity η of the liquid?
Options
JEE MainsNEETJEE Advanced
Open question & full solution →