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Syllabus

Mechanical Properties of Solids — Syllabus

CBSE · Class 11 · Physics

What Mechanical Properties of Solids covers in CBSE Class 11 Physics: 4 topics, for the 2026-27 session. Part of the CBSE Class 11 Physics syllabus.

122 questions64 flashcards11 formulas & key relations5 concepts

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4 Topics · CBSE Class 11 Physics · 2026-27

Topics in Mechanical Properties of Solids

1

1. Basic ideas: elasticity, plasticity, stress and strain

  • Elasticity is the property of a body to regain its original size and shape after the deforming force is removed.
  • Plasticity is the property of a body to retain the deformed shape permanently.
  • Putty and mud are close to ideal plastics.
2

2. Hooke’s law and stress-strain curve

  • Hooke’s law states that for small deformations, stress is proportional to strain.
  • Hooke’s law is empirical and valid for most materials, but not for all materials.
  • Hooke’s law is valid only in the linear part of the stress-strain curve.
3

3. Young’s modulus

  • Young’s modulus is the ratio of tensile or compressive stress to longitudinal strain.
  • It applies only to solids.
  • Its unit is the same as stress, N/m^2 or pascal, because strain has no unit.
4

4. Shear modulus and bulk modulus

  • Shear modulus is the ratio of shearing stress to shearing strain.
  • It is also called modulus of rigidity.
  • Shear modulus applies only to solids.

Key Concepts

Central concept: Elastic behaviour and mechanical response of solids under external forces

StressStrainHooke's lawStress-strain curveElastic moduliYoung's modulusShear modulusBulk modulus

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Frequently Asked Questions

What are the important topics in Mechanical Properties of Solids for CBSE Class 11 Physics?
Key topics in Mechanical Properties of Solids include Basic ideas: elasticity, plasticity, stress and strain, Hooke’s law and stress-strain curve, Young’s modulus, Shear modulus and bulk modulus. Study these first, then practise questions on each for Class 11 exams.
How should I revise Mechanical Properties of Solids for Class 11 exams?
Learn the core ideas first, then work through the 122 practice questions on Mechanical Properties of Solids. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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All CBSE Class 11 Physics Syllabus

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