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Mechanical Properties of Fluids — NEET 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 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 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.