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

2 / 30

2. Which of the following statements is TRUE regarding angle of contact?

3 / 30

3. What is the critical Reynolds number for flow in a cylindrical tube?

4 / 30

4. Which of the following is a practical application of barometric pressure?

5 / 30

5. A simple U-tube manometer contains mercury. If the levels of mercury in both arms are equal, this indicates:

6 / 30

6. Which of the following is an example of a Newtonian fluid?

7 / 30

7. What is surface tension?

8 / 30

8. Which of the following best summarizes the interpretation of Reynolds number values?

9 / 30

9. If a sphere and a cube of the same density and volume fall through a viscous fluid, which one will reach terminal velocity first?

10 / 30

10. In industries, terminal velocity is utilized in:

11 / 30

11. Why does paint spread better on a surface treated with primer?

12 / 30

12. A U-tube contains mercury. Oil of density is poured into one arm until the length of oil column is . Find the difference in mercury levels. (Take density of mercury ).

13 / 30

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

14 / 30

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

15 / 30

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

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16. Which of the following best represents a real-life example of turbulent flow?

17 / 30

17. Terminal velocity of raindrops is important because:

18 / 30

18. A dam is 25 m high. If water density is , what is the pressure exerted at the bottom of the dam?

19 / 30

19. In laminar flow through a circular pipe, velocity distribution across the section is:

20 / 30

20. Why is thermal conductivity important in everyday appliances?

21 / 30

21. What is viscosity in fluids?

22 / 30

22. Streamline flow is also known as:

23 / 30

23. Why can’t Bernoulli’s principle be applied in compressible fluid flows at very high speeds?

24 / 30

24. Why do liquids form a free surface while gases do not?

25 / 30

25. Atmospheric pressure is caused by:

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26. The expression of viscous drag force derived by Stokes is:

27 / 30

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

28 / 30

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

29 / 30

29. In microfluidic devices, Reynolds number is often much less than 1. What does this imply about the flow?

30 / 30

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

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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 hydrostatic pressure at a certain depth in a fluid does NOT depend on:

2 / 50

2. If a force of 200 N is applied uniformly on a surface of area 0.5 m, the pressure is:

3 / 50

3. Which property increases the chance of turbulent flow?

4 / 50

4. The instrument used to measure atmospheric pressure is:

5 / 50

5. Why does oil flow more slowly than water?

6 / 50

6. Which of the following statements summarizes the main limitations of Stokes’ law?

7 / 50

7. What are the dimensions of pressure in terms of mass (M), length (L), and time (T)?

8 / 50

8. Stokes’ law fails when the Reynolds number:

9 / 50

9. 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.

10 / 50

10. Why do mountaineers carry oxygen cylinders at high altitudes?

11 / 50

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

12 / 50

12. The expression for critical velocity in terms of Reynolds number is:

13 / 50

13. Mercury in a glass capillary tube shows depression instead of rise because:

14 / 50

14. Why does the wall of a dam have greater thickness at the bottom than at the top?

15 / 50

15. Which statement best summarizes the mechanism of detergents?

16 / 50

16. Which of the following correctly describes a flow regime when Reynolds number is less than 2000 in pipe flow?

17 / 50

17. Which of the following best describes the condition for terminal velocity mathematically?

18 / 50

18. Why is thermal conductivity important in everyday appliances?

19 / 50

19. A cylindrical tank is filled with water to a depth of . Find the pressure at the bottom due to the water column. ()

20 / 50

20. In a hydraulic brake system, the driver applies a force of on the brake pedal connected to a piston of area . If the area of the brake shoe piston is , what force is exerted on the brake shoe?

21 / 50

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

22 / 50

22. Why is the study of thermal properties crucial in space technology?

23 / 50

23. Which statement best summarizes the effect of temperature on surface tension?

24 / 50

24. Why is Reynolds number significant in aerodynamics?

25 / 50

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

26 / 50

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

27 / 50

27. Which of the following is a typical flow regime for blood in small capillaries?

28 / 50

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

29 / 50

29. Which of the following conditions is necessary for a particle to reach terminal velocity in a fluid?

30 / 50

30. In the laminar flow regime, head loss due to friction in a pipe is proportional to:

31 / 50

31. Which type of viscometer measures viscosity by the falling sphere method?

32 / 50

32. What type of force is represented by Stokes’ law?

33 / 50

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

34 / 50

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

35 / 50

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

36 / 50

36. In lubricating oils, why is viscosity index (VI) important?

37 / 50

37. The unit Torr is defined based on:

38 / 50

38. Mathematically, Bernoulli’s equation can be written as:

39 / 50

39. Why do airplane wings experience turbulence?

40 / 50

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

41 / 50

41. Which application of wetting is used in detergents and soaps?

42 / 50

42. A dam is 25 m high. If water density is , what is the pressure exerted at the bottom of the dam?

43 / 50

43. A fluid of viscosity , density , flows at velocity through a pipe of diameter . Find Reynolds number.

44 / 50

44. In Reynolds’ experiment, dye injected into water in a tube forms a straight line along the flow. This indicates:

45 / 50

45. A skydiver falls freely from an aircraft and attains a speed of about . This speed is called:

46 / 50

46. Which of the following conditions ensures that terminal velocity exists for a falling body in a fluid?

47 / 50

47. Why do rain drops appear spherical while falling through air?

48 / 50

48. Pressure is a:

49 / 50

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

50 / 50

50. Which of the following is NOT an application of capillary action in soil science?

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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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