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Mechanical Properties of Fluids — NEET & JEE Physics MCQs

30 questions written by hand against the NCERT chapter. Every wrong option is explained, not just the right one.

30questions
10/14/6easy / medium / hard
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Sample questions from this chapter

How is pressure at a point in a fluid defined?
  1. Normal force per unit area ✓
  2. Tangential force per unit area
  3. Force multiplied by area
  4. Work done per unit mass
Answer: A. Pressure is the limiting normal force divided by the small area on which it acts.
Why not B: A fluid at rest cannot sustain tangential stress; its contact force is normal.
Why not C: Pressure requires division by area and has dimensions of force per area.
Why not D: Work per mass has dimensions of specific energy, not pressure.
What gauge pressure is produced 5.00 m below a water surface if ρ=1.00×10³ kg m⁻³ and g=10.0 m s⁻²?
  1. 5.00×10³ Pa
  2. 2.00×10³ Pa
  3. 5.00×10⁴ Pa ✓
  4. 5.00×10⁵ Pa
Answer: C. Gauge pressure is ρgh=1.00×10³×10.0×5.00=5.00×10⁴ Pa.
Why not A: This uses g=1.00 m s⁻², dropping the stated factor ten from the hydrostatic product.
Why not B: This divides density by depth instead of multiplying ρgh.
Why not D: This inserts an extra factor ten beyond the stated depth and gravity.
A mercury manometer shows a 10.0 cm level difference. With ρ=13.6×10³ kg m⁻³ and g=10.0 m s⁻², what pressure difference is measured?
  1. 1.36×10⁴ Pa ✓
  2. 1.36×10³ Pa
  3. 1.36×10⁵ Pa
  4. 7.35×10³ Pa
Answer: A. ΔP=ρgh=13.6×10³×10.0×0.100=1.36×10⁴ Pa.
Why not B: This treats 10.0 cm as 0.0100 m rather than 0.100 m.
Why not C: This treats 10.0 cm as 1.00 m, adding a factor ten.
Why not D: This effectively divides by density-height product instead of using ρgh.

These are 3 of the 30 questions in the test. Take the full chapter test →

Read the chapter first

Every NCERT question in this chapter is solved, free: NCERT solutions — Mechanical Properties of Fluids →

Other NEET Physics chapters

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Questions

How many NEET and JEE questions are there on Mechanical Properties of Fluids?

This chapter test has 30 questions — 10 easy, 14 medium and 6 hard — all written against the NCERT Class 11 chapter.

Is this NEET and JEE Physics chapter test free?

Yes. Every chapter test is free with no login, and you get your all-India rank on every one. Nothing on the site is on sale right now.

Do the questions explain the wrong options?

Yes — every distractor carries its own explanation naming the specific misconception that makes a student pick it. That is the part most question banks skip, and it is the part that changes your next attempt.