Mechanical Properties of Solids is a Class 11 Physics chapter that carries about 1.5% of the Physics questions in NEET. Practise it with 38 questions covering 2 topics, each with an explanation.
Sets of 15 questions that adapt to your level, with an explanation for every answer.
Across the 13 previous year papers, Mechanical Properties of Solids had 9 questions, about 0.7 a year. The most in one paper was 1, in AIPMT 2014.
| Paper | Questions from this chapter |
|---|---|
| NEET 2026 | 1 |
| NEET 2025 | 0 |
| NEET 2024 | 1 |
| NEET 2023 | 1 |
| NEET 2022 | 0 |
| NEET 2021 | 0 |
| NEET 2020 | 1 |
| NEET 2019 | 1 |
| NEET 2018 | 1 |
| NEET 2017 | 1 |
| NEET 2016 | 0 |
| Re-AIPMT 2015 | 1 |
| AIPMT 2014 | 1 |
8 questions from the practice bank, spread across the chapter's topics. The full set is in the app.
Hooke's law states that, within the elastic limit, stress is:
Answer: B. directly proportional to strain
Why: Hooke's law: within the elastic limit, stress is directly proportional to strain — stress = modulus of elasticity × strain.
Young's modulus of a perfectly rigid body is:
Answer: A. infinite
Why: The strain would be zero for any stress.
The reciprocal of the bulk modulus of a material is called its:
Answer: C. compressibility
Why: Bulk modulus B = −Δp/(ΔV/V). Compressibility k = 1/B.
A steel rod (Y = 2 × 10¹¹ N/m², α = 1.2 × 10⁻⁵ °C⁻¹) is clamped rigidly between two supports and heated by 10 °C. The thermal stress is:
Answer: A. 2.4 × 10⁷ N/m²
Why: σ = YαΔT = 2 × 10¹¹ × 1.2 × 10⁻⁵ × 10.
The elastic energy stored per unit volume in a wire of Young's modulus 2 × 10¹¹ N/m² strained by 10⁻³ is:
Answer: C. 10⁵ J/m³
Why: u = ½Y(strain)² = ½ × 2 × 10¹¹ × 10⁻⁶ = 10⁵ J/m³.
Two wires of the same material carry the same load. Wire A has length L and radius r, wire B has length 2L and radius 2r. The ratio of their extensions A : B is:
Answer: B. 2 : 1
Why: Δl ∝ L/r². For A it is L/r², for B it is 2L/4r² = L/2r². The ratio is 2 : 1.
The elastic hysteresis of rubber means that:
Answer: B. the stress–strain curve for loading and unloading are different, and the area between them is the energy lost as heat
Why: This is why rubber is used for shock absorbers and vibration dampers.
Among steel, rubber, and glass, which typically has the highest Young's modulus (is stiffest)?
Answer: B. Steel
Why: Steel has a much higher Young's modulus than rubber (highly elastic/stretchy) or glass, making it significantly stiffer and more resistant to elastic deformation under stress.
Mechanical Properties of Solids carries about 1.5% of the Physics questions in NEET. Across the 13 previous year papers on NeetVictory it appeared 9 times, about 0.7 questions a year.
Mechanical Properties of Solids is a Class 11 Physics chapter in the NCERT syllabus.
NeetVictory has 38 practice questions on Mechanical Properties of Solids, each with an explanation, in sets of 15 that adapt to your level. This page shows a free sample.
NeetVictory