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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.

15 / 20

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.

16 / 20

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:

18 / 20

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

19 / 20

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.

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

Good luck! 👍

1 / 30

1. Streamline flow is also known as:

2 / 30

2. Why are nanoparticles often stabilized by surfactants in colloidal solutions?

3 / 30

3. Which factor directly increases the height of capillary rise in a liquid?

4 / 30

4. In Bernoulli’s derivation, dividing energy terms by gives:

5 / 30

5. A soap film has area and surface tension . Calculate its surface energy.

6 / 30

6. Why does terminal velocity increase with particle radius?

7 / 30

7. The terminal velocity of a spherical particle is proportional to:

8 / 30

8. Water of viscosity flows in a pipe of diameter . If density is and , calculate the critical velocity.

9 / 30

9. What does Reynolds number physically represent in fluid dynamics?

10 / 30

10. Why are soap bubbles more stable in the presence of glycerin?

11 / 30

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

12 / 30

12. Why does kerosene rise higher in a thin wick compared to a thick wick in an oil lamp?

13 / 30

13. A solid cube of ice melts completely when heat is supplied. If latent heat of fusion is , find the mass of ice.

14 / 30

14. The reason pressure cookers are efficient in cooking is related to:

15 / 30

15. If cohesive forces in a liquid are stronger than adhesive forces with the container, the liquid will:

16 / 30

16. A container has kerosene oil () filled up to 10 m. What pressure does it exert at the base?

17 / 30

17. For a liquid film of surface tension and area , the total surface energy is:

18 / 30

18. What is streamline flow in fluids?

19 / 30

19. A highly viscous liquid is less likely to undergo laminar-to-turbulent transition because:

20 / 30

20. Which law governs laminar flow in narrow pipes?

21 / 30

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

22 / 30

22. A 2 kg block of ice at is converted into water at . If specific heat of ice = 2100 J/kgK, latent heat of fusion = , specific heat of water = 4200 J/kgK, find total heat absorbed.

23 / 30

23. Which device is most suitable for measuring pressure in aircraft at high altitudes?

24 / 30

24. How does the density of a liquid affect capillary rise?

25 / 30

25. The working of a carburetor in vehicles is based on:

26 / 30

26. An aneroid barometer differs from a mercury barometer in that:

27 / 30

27. Which of the following fluids shows shear-thinning (pseudoplastic) behavior?

28 / 30

28. A container holds mercury up to 2 m. If , calculate the pressure at the bottom. ()

29 / 30

29. The unit Torr is defined based on:

30 / 30

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

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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. The excess pressure inside a soap bubble of radius and surface tension is:

2 / 50

2. Which of the following fluids shows shear-thickening (dilatant) behavior?

3 / 50

3. How does atmospheric pressure vary with height above the Earth’s surface?

4 / 50

4. What happens to surface tension when detergent is added to water?

5 / 50

5. A 2 kg block of ice at is converted into water at . If specific heat of ice = 2100 J/kgK, latent heat of fusion = , specific heat of water = 4200 J/kgK, find total heat absorbed.

6 / 50

6. Which of the following applications of surface tension is widely used in thin film coating industries?

7 / 50

7. According to Stokes’ law, the viscous force on a small sphere moving with velocity through a fluid is:

8 / 50

8. Which law governs laminar flow in narrow pipes?

9 / 50

9. Which factor does NOT directly affect Reynolds number?

10 / 50

10. How do detergent molecules reduce surface tension?

11 / 50

11. Which of the following is an advantage of hydraulic brakes in automobiles?

12 / 50

12. If the radius of a capillary tube is halved, the height of capillary rise becomes:

13 / 50

13. The rise of a liquid in a capillary tube is given by:

14 / 50

14. For a liquid with contact angle , surface tension , density , and tube radius , capillary rise is proportional to:

15 / 50

15. A mountain climber finds that the barometric pressure has dropped to of Hg from the normal . Estimate the altitude gained. (Density of Hg = ).

16 / 50

16. In plant stems, the rise of sap through xylem vessels is possible because:

17 / 50

17. In a pipe, the flow changes from laminar to turbulent when:

18 / 50

18. In aerodynamics, drag force acting on a body moving through air consists mainly of:

19 / 50

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

20 / 50

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

21 / 50

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

22 / 50

22. The expression for terminal velocity of a small sphere falling through a viscous fluid is:

23 / 50

23. Why do railway tracks have steel expansion joints?

24 / 50

24. In external flow over an aircraft wing, laminar boundary layer exists near the leading edge but eventually transitions to:

25 / 50

25. Which of the following best summarizes the applications of droplet formation and capillary action?

26 / 50

26. A capillary tube of radius is dipped in water (). Find the height of water rise.

27 / 50

27. A metallic sphere of radius is heated by . If specific heat capacity = , density = , find temperature rise.

28 / 50

28. Which of the following best summarizes the significance of the Venturi effect in engineering?

29 / 50

29. Why does oil flow more slowly than water?

30 / 50

30. When a hot body comes in contact with a cold body, heat flows:

31 / 50

31. Why does hot water clean greasy utensils better than cold water?

32 / 50

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

33 / 50

33. Why does a paintbrush with fine bristles hold water when dipped?

34 / 50

34. Hydraulic systems work on the principle of:

35 / 50

35. Which of the following liquids shows a sharp decrease in viscosity when heated?

36 / 50

36. Why does adding soap to water stabilize bubbles?

37 / 50

37. The height of capillary rise is given by:

38 / 50

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

39 / 50

39. Which of the following statements about thermal equilibrium is correct?

40 / 50

40. Which of the following is NOT a characteristic of turbulent flow?

41 / 50

41. A raindrop falling in air does not keep accelerating forever because:

42 / 50

42. In a hydraulic press, the ratio of load lifted to the applied force is equal to:

43 / 50

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

44 / 50

44. What is the lowest possible temperature called?

45 / 50

45. Which factor does NOT influence capillary rise?

46 / 50

46. A capillary tube of radius shows a depression of for mercury. If density of mercury is and surface tension is , find the angle of contact.

47 / 50

47. Why does water rise in soil pores even against gravity?

48 / 50

48. Water of viscosity flows in a pipe of diameter . If density is and , calculate the critical velocity.

49 / 50

49. What is the definition of pressure in physics?

50 / 50

50. How does temperature generally affect the viscosity of liquids?

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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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