Last Updated on June 5, 2025 by XAM CONTENT
Mastering the important concepts in Class 11 Physics Chapter 10 – Thermal Properties of Matter 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 Thermal Properties of Matter MCQs will strengthen your conceptual clarity.
| Chapter | Thermal Properties of Matter |
| 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 Thermal Properties of Matter Class 11 Physics (PDF Download)
MCQs
Q1. Which of the following is a correct relation between Celsius and Fahrenheit temperature scales?
(a) °F = (9/5)°C + 32
(b) °F = (5/9)°C + 32
(c) °F = (9/5)°C – 32
(d) °F = (5/9)(°C – 32)
Show Answer
Answer: (a)
Explanation: The correct formula to convert Celsius to Fahrenheit is °F = (9/5)°C + 32.
Q2. The SI unit of specific heat capacity is:
(a) J kg
(b) J K
(c) J kg⁻¹ K⁻¹
(d) J mol⁻¹ K⁻¹
Show Answer
Answer: (c)
Explanation: Specific heat is the heat per unit mass per unit temperature change.
Q3. Which property of water allows aquatic life to survive in frozen lakes?
(a) Low latent heat
(b) Anomalous expansion
(c) High density
(d) High boiling point
Show Answer
Answer: (b)
Explanation: Water expands below 4°C, making ice float and insulating the water below.
Q4. For a gas at constant pressure, the volume increases linearly with temperature. This is known as:
(a) Boyle’s law
(b) Charles’ law
(c) Gay-Lussac’s law
(d) Newton’s law
Show Answer
Answer: (b)
Explanation: Charles’ law relates volume and temperature at constant pressure.
Q5. The coefficient of volume expansion for an ideal gas is:
(a) Independent of temperature
(b) Inversely proportional to temperature
(c) Directly proportional to pressure
(d) Equal to 1/T
Show Answer
Answer: (d)
Explanation: For an ideal gas, αv = 1/T at constant pressure.
Q6. Which of the following expresses the Stefan-Boltzmann law correctly?
(a) H = eσT
(b) H = σT⁴
(c) H = eσT⁴
(d) H = eT⁴
Show Answer
Answer: (c)
Explanation: Stefan-Boltzmann law states power radiated ∝ emissivity × T⁴.
Q7. In Newton’s law of cooling, the rate of cooling is proportional to:
(a) The temperature of the body
(b) Square of the temperature
(c) Temperature difference between body and surroundings
(d) Logarithm of time
Show Answer
Answer: (c)
Explanation: Rate ∝ (T – Tenv) for small differences.
Q8. If heat is supplied to water at 100°C, temperature does not rise. This is because:
(a) Water reflects heat
(b) Water becomes non-reactive
(c) Heat is used in changing state
(d) Heat is lost as sound
Show Answer
Answer: (c)
Explanation: During phase change, heat energy is used for changing the state, not raising temperature.
Q9. The thermal conductivity of a good conductor is:
(a) High
(b) Low
(c) Zero
(d) Depends on density
Show Answer
Answer: (a)
Explanation: Good conductors like copper and silver have high thermal conductivity.
Q10. The emissivity of a perfect black body is:
(a) 0
(b) 0.5
(c) 1
(d) Infinity
Show Answer
Answer: (c)
Explanation: A perfect black body absorbs and emits all radiation, hence e = 1.
Q11. Which mode of heat transfer requires no medium?
(a) Conduction
(b) Convection
(c) Radiation
(d) Both (a) and (b)
Show Answer
Answer: (c)
Explanation: Radiation transfers heat through electromagnetic waves, requiring no medium.
Q12. A body cools from 80°C to 70°C in 5 minutes. How long will it take to cool from 70°C to 60°C under same conditions?
(a) Less than 5 minutes
(b) 5 minutes
(c) More than 5 minutes
(d) Cannot be determined
Show Answer
Answer: (c)
Explanation: As temperature difference decreases, cooling slows down according to Newton’s law.
Q13. The specific heat of a substance is maximum in:
(a) Solid state
(b) Liquid state
(c) Gaseous state
(d) Plasma state
Show Answer
Answer: (b)
Explanation: Liquids generally have higher specific heat than solids and gases.
Q14. Two rods of same dimensions, one of copper and another of steel, are heated equally. Which expands more?
(a) Steel
(b) Copper
(c) Both equally
(d) Cannot be determined
Show Answer
Answer: (b)
Explanation: Copper has higher coefficient of linear expansion than steel.
Q15. Which quantity is same in all modes of heat transfer?
(a) Temperature
(b) Entropy
(c) Energy
(d) Time
Show Answer
Answer: (c)
Explanation: In conduction, convection, and radiation — heat energy is transferred.
Q16. Which law governs the cooling of a body placed in a room?
(a) Charles’ law
(b) Newton’s law of cooling
(c) Stefan’s law
(d) Wien’s law
Show Answer
Answer: (b)
Explanation: Rate of cooling is governed by Newton’s law of cooling.
Q17. A black surface appears black because:
(a) It reflects all radiation
(b) It refracts light
(c) It absorbs all radiation
(d) It emits all radiation
Show Answer
Answer: (c)
Explanation: Black bodies absorb all incident radiation and appear black.
Q18. Thermal conductivity of gases is less than that of solids because:
(a) Gases are lighter
(b) Intermolecular collisions are fewer
(c) Mean free path is large
(d) No lattice vibration
Show Answer
Answer: (d)
Explanation: Gases transfer energy via molecular collisions, not lattice vibrations like solids.
Q19. During a phase change, which of the following remains constant?
(a) Volume
(b) Temperature
(c) Mass
(d) Pressure
Show Answer
Answer: (b)
Explanation: During melting or boiling, temperature remains constant until the change is complete.
Q20. Which of the following is the most effective absorber and emitter of heat?
(a) White polished surface
(b) Black rough surface
(c) Silvered surface
(d) Transparent surface
Show Answer
Answer: (b)
Explanation: Black rough surfaces are ideal absorbers and emitters of radiation.
We hope the given mcq questions with Answers for Thermal Properties of Matter Class 11 helps you in your learning.
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Topics from which mcq questions may be asked
- Heat and temperature
- Calorimetry
- Expansion of solids, liquids, gases
Heat is energy in transit—it changes states, systems, and reactions.
Frequently Asked Questions (FAQs) on Thermal Properties of Matter 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.
