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Mechanical Properties of Solids — NEET Physics MCQs

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

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

What is elasticity of a material?
  1. Its tendency to regain original size and shape after the deforming force is removed ✓
  2. Its ability to retain every deformation permanently
  3. Its resistance to all applied forces without any internal strain
  4. Its tendency to increase volume whenever pressure is applied
Answer: A. Elasticity is the recovery property by which a deformed body tends to restore its original dimensions.
Why not B: Permanent retention of deformation describes plasticity rather than elasticity.
Why not C: Real solids deform under load; elasticity concerns recovery, not perfect rigidity.
Why not D: Ordinary positive pressure decreases volume and does not define elasticity.
A normal force of 1.00×10³ N acts on area 2.00×10⁻⁴ m². What stress is produced?
  1. 2.00×10⁻¹ Pa
  2. 2.00×10⁷ Pa
  3. 5.00×10⁶ Pa ✓
  4. 2.00×10⁻⁷ Pa
Answer: C. Stress=F/A=(1.00×10³)/(2.00×10⁻⁴)=5.00×10⁶ Pa.
Why not A: This multiplies force by area instead of dividing force by area.
Why not B: This divides by one quarter of the stated area, inserting an extra factor four.
Why not D: This divides area by force, taking the reciprocal of stress.
Two wires in series have the same area and carry the same 100 N tension. Their lengths and Young's moduli are 1.00 m, 1.00×10¹¹ Pa and 2.00 m, 2.00×10¹¹ Pa; area is 1.00×10⁻⁶ m². What is total elongation?
  1. 2.00 mm ✓
  2. 1.00 mm
  3. 3.00 mm
  4. 0.500 mm
Answer: A. The elongations are 1.00 mm and 1.00 mm from FL/(AY), so their series total is 2.00 mm.
Why not B: This calculates the elongation of either individual wire but omits the other series segment.
Why not C: This adds lengths before applying only the smaller modulus to the composite.
Why not D: This uses the larger modulus and only the shorter length for both segments.

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

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Questions

How many NEET questions are there on Mechanical Properties of Solids?

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.