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Class 11 Physics — Chapter 11: Thermal Properties of Matter Online Test

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Class 11 Physics: Thermal Properties of Matter Online Test (Paper 1)

Welcome to Paper 1! This is your foundation to build confidence and get you ready to tackle the challenges ahead.

  • Total Questions: 20
  • Time Allotted: 30 minutes
  • Passing Score: 40%
  • Randomization: No
  • Certificate: No
  • Retake: Allowed
  • Price: 100% Free

Good luck! 👍

1 / 20

1. A blackbody emits maximum radiation at wavelength . Calculate the temperature of the blackbody.

2 / 20

2. How do detergents remove oil and grease stains from clothes?

3 / 20

3. A soil pore of radius retains water with surface tension . Calculate height of capillary rise ().

4 / 20

4. A cavitation bubble of radius in water has surface tension . Find excess pressure inside.

5 / 20

5. A soap bubble of radius has surface tension . Find the excess pressure inside it.

6 / 20

6. If the angle of contact , what will be the value of ?

7 / 20

7. A cubic centimeter of water splits into spherical droplets. If surface tension of water is , estimate the increase in surface energy. (Take density = ).

8 / 20

8. Which of the following is NOT an example of capillary action?

9 / 20

9. Which of the following is the correct statement of Bernoulli’s principle?

10 / 20

10. What does a Reynolds number greater than 3000 usually indicate?

11 / 20

11. For water at (), flowing at in a pipe of diameter , calculate .

12 / 20

12. A submarine moves at in seawater (). If its length is , calculate Reynolds number.

13 / 20

13. Water of density flows with velocity in a pipe of diameter . If viscosity is , calculate the Reynolds number.

14 / 20

14. Oil of density and viscosity flows through a pipe of diameter at velocity . Calculate Reynolds number.

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15. A water droplet of radius falls through air. If viscosity of air is and density of water is , while air density is , find its terminal velocity.

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16. A pollen grain of radius has density . If it falls in air (), calculate its terminal velocity. ()

17 / 20

17. In sedimentation analysis, particle size can be determined by measuring:

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18. A dust particle of radius and density settles in air of viscosity . Find its terminal velocity. ()

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19. If the atmospheric pressure is of Hg, the corresponding pressure in Pascal is approximately:

20 / 20

20. What happens to atmospheric pressure as altitude increases?

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Class 11 Physics: Thermal Properties of Matter Online Test (Paper 2)

Welcome to Paper 2! You’ve mastered the basics, and now it’s time to test your understanding with a more challenging set of questions.

Get new questions on each attempt

  • Total Questions: 30
  • Time Allotted: 45 minutes
  • Passing Score: 50%
  • Randomization: Yes
  • Certificate: No
  • Retake: Allowed
  • Price: 100% Free

Good luck! 👍

1 / 30

1. Why does a perfume atomizer work effectively?

2 / 30

2. Which scale of temperature has no negative values?

3 / 30

3. Which statement is TRUE about streamline and turbulent flow?

4 / 30

4. Which medical device works on the principle of the Venturi effect?

5 / 30

5. Why does turbulence occur at high Reynolds numbers?

6 / 30

6. A liquid of density is filled in a container to a depth of . Calculate the hydrostatic pressure at the bottom. ()

7 / 30

7. A blackbody at has a peak wavelength . If the peak wavelength is observed to be , verify Wien’s law constant and find its value.

8 / 30

8. In sedimentation analysis, particle size can be determined by measuring:

9 / 30

9. A blackbody emits maximum radiation at wavelength . Calculate the temperature of the blackbody.

10 / 30

10. Which of the following instruments is used to measure the viscosity of a fluid?

11 / 30

11. What is the dimensional formula of viscosity as obtained from Stokes’ law?

12 / 30

12. A cylindrical tank of cross-sectional area is filled with oil of density up to 6 m. What is the pressure at the base due to the oil?

13 / 30

13. Why is waterproof coating applied on fabrics?

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14. Why are smaller liquid droplets less stable compared to larger ones?

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15. A body of mass and specific heat capacity is heated from to . Calculate the heat absorbed.

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16. Which liquid will show higher capillary rise in a glass tube of equal radius?

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17. In an open-end manometer, if the mercury column is higher on the side open to the atmosphere, it indicates:

18 / 30

18. A droplet of radius has excess pressure . If the radius is halved, what will be the excess pressure?

19 / 30

19. Which law describes the exponential decrease of pressure with height in the atmosphere (assuming isothermal conditions)?

20 / 30

20. How does temperature affect the viscosity of gases?

21 / 30

21. Which parameter in the Reynolds number formula represents the "characteristic length"?

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22. The viscosity of a gas at absolute temperature is approximately proportional to:

23 / 30

23. Which of the following best summarizes the role of surface tension in drops and bubbles?

24 / 30

24. Why is Stokes’ law used in determining viscosity of fluids using sedimentation?

25 / 30

25. Which statement best summarizes the role of bubbles in medicine and engineering?

26 / 30

26. Which type of soil retains more water due to capillarity?

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27. Which device is commonly used to measure the pressure of a gas in a closed container?

28 / 30

28. If a small sphere’s radius is doubled, how does its terminal velocity change (keeping all other parameters constant)?

29 / 30

29. Which of the following is an application of capillarity and surface tension in materials science?

30 / 30

30. Why can terminal velocity never be reached in vacuum?

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Class 11 Physics: Thermal Properties of Matter Online Test (Paper 3)

Welcome to Paper 3! You’ve warmed up—now it's time to step up your game and conquer the challenge with tougher questions!

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  • Total Questions: 50
  • Time Allotted: 75 minutes
  • Passing Score: 70%
  • Randomization: Yes
  • Certificate: Yes
  • Retake: Allowed
  • Price: 100% Free

Good luck! 👍

1 / 50

1. Which real-life application of Bernoulli’s principle explains the lift force on an airplane wing?

2 / 50

2. A cavity radiator at emits maximum radiation at wavelength . If temperature increases to , the new peak wavelength will be:

3 / 50

3. The temperature at which pure ice melts under normal atmospheric pressure is:

4 / 50

4. Mercury in a glass tube shows a convex meniscus because:

5 / 50

5. Which of the following is an application of capillarity and surface tension in materials science?

6 / 50

6. Which of the following best describes the relationship between surface tension and surface energy?

7 / 50

7. Which statement best summarizes surface tension measurement techniques?

8 / 50

8. Why does detergent reduce the surface tension of water?

9 / 50

9. The height of water rise in soil is inversely proportional to:

10 / 50

10. Standard atmospheric pressure at sea level is defined as:

11 / 50

11. The instrument used to measure atmospheric pressure is:

12 / 50

12. In industrial pipeline design, turbulent regime is often preferred for transporting gases because:

13 / 50

13. The effectiveness of hydraulic brakes decreases if:

14 / 50

14. Which of the following explains why toothpaste comes out uniformly when the tube is pressed?

15 / 50

15. The SI unit of coefficient of viscosity is:

16 / 50

16. A swimmer is at a depth of 15 m in a lake. Find the absolute pressure at that depth. ()

17 / 50

17. Why is thermal conductivity important in everyday appliances?

18 / 50

18. Which statement best summarizes the applications of wetting and spreading?

19 / 50

19. A detergent solution forms smaller drops on a glass slide compared to pure water. Why?

20 / 50

20. Which of the following is a correct distinction between Newtonian and Non-Newtonian fluids?

21 / 50

21. What happens to the acceleration of a particle as it approaches terminal velocity?

22 / 50

22. Which of the following liquids exhibits an obtuse angle of contact with glass?

23 / 50

23. Why can’t Stokes’ law be applied to very small particles like smoke or colloidal particles in air?

24 / 50

24. Which of the following expressions gives the variation of pressure with height in the atmosphere (for incompressible air approximation)?

25 / 50

25. Which statement best summarizes the factors affecting capillary rise?

26 / 50

26. What is the definition of pressure in physics?

27 / 50

27. The empirical relation for surface tension with temperature is given by:

28 / 50

28. What is the dimensional formula of viscosity as obtained from Stokes’ law?

29 / 50

29. Why is Reynolds number dimensionless?

30 / 50

30. Why does water spread easily on a clean glass surface?

31 / 50

31. Why is Stokes’ law not valid for larger spheres moving rapidly through a fluid?

32 / 50

32. Which thermal property of water makes it important for regulating Earth’s climate?

33 / 50

33. Why does the roof of a house lift off during a cyclone, explained using Venturi effect?

34 / 50

34. A container has two immiscible liquids, each of height 2 m. The densities are and . Find the pressure at the bottom.

35 / 50

35. Which of the following statements correctly explains the importance of thermal expansion in railways?

36 / 50

36. Why does hydrostatic pressure increase with depth?

37 / 50

37. Why does a parachutist experience terminal velocity after some time in free fall?

38 / 50

38. A streamline tube carries fluid of density . Work done by pressure force per unit volume as fluid moves a distance is:

39 / 50

39. Why does terminal velocity occur in fluids?

40 / 50

40. Which of the following best summarizes the role of surface tension in drops and bubbles?

41 / 50

41. Which of the following devices operates on Bernoulli’s principle?

42 / 50

42. In large arteries under abnormal high blood flow rates, the regime may become:

43 / 50

43. The terminal velocity of a small spherical particle falling through a viscous fluid is given by:

44 / 50

44. Why do gases fill the entire container, unlike liquids?

45 / 50

45. A rod of length , cross-sectional area , and thermal conductivity is conducting a steady heat current of . Find the temperature difference between its ends.

46 / 50

46. Which molecular force is mainly responsible for surface tension in liquids?

47 / 50

47. Which principle allows trees to transport water from roots to leaves without pumping?

48 / 50

48. The thermal conductivity of copper is . A copper rod of length and area is maintained at at one end and at the other. Find the rate of heat conduction.

49 / 50

49. Which formula is used to measure surface tension using capillary rise when angle of contact is considered?

50 / 50

50. Which of the following is a correct statement about terminal velocity?

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Practice Thermal Properties of Matter MCQs
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Class 11 Physics — Chapter 11: Thermal Properties of Matter Online Test

The Thermal Properties of Matter Online Test for Class 11 Physics helps students understand how heat affects the physical properties of substances. This chapter is all about learning the science behind expansion, temperature measurement, heat transfer, and change of state. Many students read the formulas but struggle when it comes to applying them in numerical problems. This test is made to solve exactly that issue — through exam-style MCQs that strengthen your logic and speed.

These online tests are fully based on the NCERT Class 11 Physics Chapter 11 — Thermal Properties of Matter and follow the latest CBSE syllabus. The test papers are interactive, time-bound, and auto-checked. Whether you are revising for school exams or preparing for JEE and NEET Physics, this chapter-wise test will make concepts like specific heat capacity, calorimetry, thermal expansion, and heat transfer crystal clear.

Students often find thermal physics tricky because it mixes theory with mathematical reasoning. This Thermal Properties of Matter Online Test helps you develop both conceptual clarity and numerical accuracy. Every time you attempt, you will gain a better sense of how heat behaves in solids, liquids, and gases — and how to use equations practically in problems.

About this Online Test

The Chapter 11 Online Test is divided into three papers designed to help you grow from beginner to advanced level. Each paper focuses on accuracy, concept building, and exam-like pressure.

  • Paper 1 — Concept Check: 20 questions · 30 min · Pass ≥ 40%
  • Paper 2 — Mixed Practice: 30 questions · 45 min · Pass ≥ 50% · Fresh set every attempt
  • Paper 3 — Final Challenge: 50 questions · 75 min · Pass ≥ 70% · Certificate on pass

Papers 2 and 3 provide new question sets every time you attempt, while Paper 1 remains constant for fundamental revision. Each test is auto-evaluated and includes full answer review after completion.

Key Topics Covered (Thermal Properties of Matter)

  • Temperature and heat — concepts and difference
  • Thermal expansion — linear, area, and volume expansion
  • Specific heat capacity and calorimetry
  • Change of state — latent heat of fusion and vaporization
  • Anomalous expansion of water
  • Heat transfer mechanisms — conduction, convection, and radiation
  • Newton’s law of cooling and its applications
  • Thermal conductivity and real-life examples

Why You Should Attempt This Test

Thermal Physics is a high-scoring topic once concepts are clear. This online test helps you build confidence by revising both definitions and numerical problems. It allows you to:

  • Strengthen formula-based understanding of heat and temperature
  • Revise all key concepts through timed tests
  • Identify weak areas instantly with automatic scoring
  • Develop speed and accuracy for board and competitive exams
  • Access free and unlimited practice without login

Who Should Take This Test

  • CBSE/NCERT Class 11 students revising Chapter 11
  • JEE and NEET aspirants focusing on Thermodynamics and Heat Transfer
  • Students who want to improve their numerical solving skills
  • Teachers using it as a ready-to-use chapter quiz for class practice

Preparation Tips for Chapter 11 — Thermal Properties of Matter

  • Learn all expansion coefficients and their relations (α, β, γ).
  • Practice calorimetry problems using the heat balance principle.
  • Revise Newton’s law of cooling and related experimental questions.
  • Attempt Paper 1 for concept revision, then Paper 2 & 3 for timed testing.
  • After each test, check wrong answers carefully to avoid repeating mistakes.

Before You Start

  • Do not refresh or close the tab during the test.
  • Use latest Chrome or Edge browser for best results.
  • Ensure a stable internet connection for smooth submission.

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