Last Updated on June 5, 2025 by XAM CONTENT
Mastering the important concepts in Class 11 Physics Chapter 8 – Mechanical Properties of Solids is essential for scoring high marks in your exams. That’s why we’ve put together chapterwise multiple-choice questions (MCQs) with answers to help you revise effectively and boost your confidence. It is a part of MCQ Questions for CBSE Class 11 Physics Series.
These multiple-choice questions will help you assess your knowledge, improve accuracy, and boost confidence for your exams. Whether you are preparing for school tests, online tests or competitive exams, these Mechanical Properties of Solids MCQs will strengthen your conceptual clarity.
| Chapter | Mechanical Properties of Solids |
| Book | Physics for Class 11 |
| Type of Questions | MCQ Questions |
| Nature of Questions | Competency Based Questions |
| Board | CBSE |
| Class | 11 |
| Subject | Physics |
| Useful for | Class 11 Studying Students |
| Answers provided | Yes |
| Difficulty level | Mentioned |
| Important Link | Class 11 Physics Chapterwise MCQ Questions |
MCQ Questions on Mechanical Properties of Solids Class 11 Physics (PDF Download)
MCQs
Q1. Which of the following materials obeys Hooke’s law over the largest strain range?
(a) Steel
(b) Copper
(c) Brass
(d) Rubber
Show Answer
Answer: (a)
Explanation: Steel obeys Hooke’s law over a wider strain range than most materials.
Q2. The stress-strain curve of a ductile material reaches its maximum at:
(a) Elastic limit
(b) Yield point
(c) Ultimate tensile strength
(d) Breaking point
Show Answer
Answer: (c)
Explanation: The maximum point on a stress-strain curve corresponds to the ultimate tensile strength.
Q3. If the Young’s modulus of a material is very high, it implies that the material is:
(a) Very stiff
(b) Easily stretchable
(c) Highly ductile
(d) Highly plastic
Show Answer
Answer: (a)
Explanation: High Young’s modulus means high resistance to elongation under tensile stress.
Q4. For the same load and cross-sectional area, elongation is inversely proportional to:
(a) Volume
(b) Length
(c) Young’s modulus
(d) Density
Show Answer
Answer: (c)
Explanation: Elongation ∝ 1/Y from the relation ∆L = (FL)/(AY).
Q5. Shearing stress produces which type of strain?
(a) Longitudinal strain
(b) Shearing strain
(c) Volume strain
(d) None
Show Answer
Answer: (b)
Explanation: Shearing stress results in a relative displacement of opposite faces.
Q6. Bulk modulus is relevant for which states of matter?
(a) Solids only
(b) Liquids only
(c) Gases only
(d) All states
Show Answer
Answer: (d)
Explanation: Bulk modulus describes compressibility in solids, liquids, and gases.
Q7. What is the Poisson’s ratio of a material with zero lateral strain?
(a) Zero
(b) Infinite
(c) One
(d) Not defined
Show Answer
Answer: (a)
Explanation: Poisson’s ratio = lateral strain / longitudinal strain, and zero lateral strain gives zero value.
Q8. Which of the following is the correct unit of elastic potential energy per unit volume?
(a) N
(b) Nm
(c) Nm–2
(d) Nm–3
Show Answer
Answer: (c)
Explanation: Elastic energy per unit volume has units of stress, i.e., Nm–2.
Q9. A brittle material breaks soon after the:
(a) Yield point
(b) Ultimate strength point
(c) Proportional limit
(d) Hooke’s law limit
Show Answer
Answer: (b)
Explanation: Brittle materials break just after the ultimate tensile strength is reached.
Q10. Which parameter is responsible for the flexibility of elastomers like rubber?
(a) High Young’s modulus
(b) Low bulk modulus
(c) Large elastic limit
(d) Large strain tolerance
Show Answer
Answer: (d)
Explanation: Elastomers can sustain large strains without permanent deformation.
Q11. In which region of the stress-strain curve is Hooke’s law obeyed?
(a) Beyond yield point
(b) Between yield and ultimate point
(c) Between origin and proportional limit
(d) Beyond fracture point
Show Answer
Answer: (c)
Explanation: Hooke’s law holds in the linear region before the material yields.
Q12. A wire of length L and area A is stretched by a force F. What is the elastic potential energy stored?
(a) FL
(b) (1/2)(F²L)/(AY)
(c) (1/2)(FL)/A
(d) FL/A
Show Answer
Answer: (b)
Explanation: U = (1/2) × stress × strain × volume = (1/2)(F²L)/(AY).
Q13. A wire elongates by 1 mm under a given load. What happens to elongation if diameter is halved, keeping other factors constant?
(a) Increases 2 times
(b) Increases 4 times
(c) Increases 8 times
(d) Decreases 2 times
Show Answer
Answer: (b)
Explanation: Elongation ∝ 1/Area ∝ 1/d², so halving d increases elongation 4 times.
Q14. In a stress-strain curve, the point after which the material undergoes permanent deformation is:
(a) Proportional limit
(b) Elastic limit
(c) Yield point
(d) Ultimate strength point
Show Answer
Answer: (c)
Explanation: After the yield point, deformation becomes plastic and irreversible.
Q15. Which modulus is used when an object is compressed uniformly from all sides?
(a) Young’s modulus
(b) Shear modulus
(c) Bulk modulus
(d) Poisson’s ratio
Show Answer
Answer: (c)
Explanation: Bulk modulus applies to volumetric compression.
Q16. Which material has highest resistance to deformation?
(a) Rubber
(b) Copper
(c) Steel
(d) Glass
Show Answer
Answer: (c)
Explanation: Steel has the highest Young’s modulus, so it deforms least under stress.
Q17. A body is subjected to hydraulic compression. The strain developed is:
(a) Lateral strain
(b) Volume strain
(c) Longitudinal strain
(d) Shearing strain
Show Answer
Answer: (b)
Explanation: Hydraulic pressure compresses uniformly, causing volume strain.
Q18. Which of the following elastic constants is dimensionless?
(a) Young’s modulus
(b) Bulk modulus
(c) Poisson’s ratio
(d) Shear modulus
Show Answer
Answer: (c)
Explanation: Poisson’s ratio is the ratio of two strains and has no units.
Q19. The stress at which strain increases without much increase in stress is called:
(a) Elastic limit
(b) Yield point
(c) Ultimate point
(d) Breaking point
Show Answer
Answer: (b)
Explanation: Yield point marks onset of plastic deformation with rapid strain increase.
Q20. Which of the following quantities determines the ability of a beam to resist bending?
(a) Young’s modulus and length
(b) Cross-sectional area only
(c) Depth of the beam
(d) Both Young’s modulus and moment of inertia
Show Answer
Answer: (d)
Explanation: Resistance to bending depends on both material stiffness and geometry.
We hope the given mcq questions with Answers for Mechanical Properties of Solids Class 11 helps you in your learning.
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Topics from which mcq questions may be asked
- Stress and strain
- Elastic modulus
- Hooke’s law
Solids deform and resist—this defines their strength and flexibility.
Frequently Asked Questions (FAQs) on Mechanical Properties of Solids MCQ Questions
Q1: What is the best way to prepare for Class 11 Physics MCQ questions?
A1: The best way is to study NCERT concepts thoroughly, practice topicwise MCQs regularly, and focus on understanding fundamental principles rather than rote learning. Solving previous year MCQs and mock tests can boost accuracy and speed.
Q2: Are NCERT questions enough for Class 11 Physics MCQ-based exams?
A2: NCERT forms the base for all CBSE Physics MCQs. However, for better preparation, students should solve additional MCQs from reference books and practice HOTS and competency-based questions to develop deeper conceptual clarity.
Q3: Where can I find chapterwise Class 11 Physics MCQ questions with answers?
A3: You can find chapterwise MCQ questions with answers and detailed explanations on trusted educational platforms like xamcontent.com and physicsgurukul.com. These cover both basic and advanced-level questions.
Q4: Do CBSE Class 11 exams include MCQs?
A4: Yes, as per the latest CBSE exam pattern, objective questions, including MCQs, are part of the final exam paper. MCQs test conceptual understanding and application skills.
Q5: How to score high in Class 11 Physics MCQs?
A5: To score high, understand the theory from NCERT, solve a variety of MCQs (basic, conceptual, numerical), and regularly revise formulas and diagrams. Avoid guesswork and focus on time management during tests.
Q6: What are competency-based MCQs in Class 11 Physics?
A6: Competency-based MCQs assess a student’s ability to apply concepts in real-life or unfamiliar scenarios. These questions go beyond textbook definitions and require logical reasoning and application of physics principles.
