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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

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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. The hydrostatic pressure at the bottom of a swimming pool of depth 2 m (density of water = ) is:

2 / 30

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

3 / 30

3. A lead shot of radius and density is falling through water of viscosity and density . Find the terminal velocity.

4 / 30

4. Why are black surfaces preferred for solar cookers?

5 / 30

5. Why is Bernoulli’s principle limited in medical applications like blood flow analysis?

6 / 30

6. 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.

7 / 30

7. Which of the following devices is based on Pascal’s law?

8 / 30

8. A hydraulic lift is designed such that a force of is applied on a piston of area . If the area of the large piston is , find the load lifted.

9 / 30

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

10 / 30

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

11 / 30

11. Which of the following is an important practical effect of decreasing surface tension with temperature?

12 / 30

12. What does a Reynolds number less than 2000 usually indicate in pipe flow?

13 / 30

13. If adhesive and cohesive forces are equal, what will be the angle of contact?

14 / 30

14. Which of the following expressions correctly gives the pressure at a depth in a fluid of density ?

15 / 30

15. Which of the following flow regimes has the highest energy loss due to friction and eddies?

16 / 30

16. Why does hydrostatic pressure increase with depth?

17 / 30

17. Which of the following best distinguishes a liquid from a gas?

18 / 30

18. Streamline flow usually occurs when:

19 / 30

19. What engineering principle explains the collapse of cavitation bubbles near a solid surface?

20 / 30

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

21 / 30

21. A capillary tube of radius is inserted in mercury (). Find the height of mercury column.

22 / 30

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

23 / 30

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

24 / 30

24. A thin plate of area and thickness has thermal conductivity . One side is at and the other at . Find the rate of heat conduction.

25 / 30

25. What is viscosity in fluids?

26 / 30

26. A glass capillary of radius is dipped in water. Calculate the capillary rise. (, , ).

27 / 30

27. The emissive power of a blackbody at is:

28 / 30

28. A steel ball of radius moves with velocity through glycerin of viscosity . Find the viscous drag force acting on the ball.

29 / 30

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

30 / 30

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

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

2 / 50

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

3 / 50

3. The formation of tiny mist droplets from a spray bottle is due to:

4 / 50

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

5 / 50

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

6 / 50

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

7 / 50

7. Why is Reynolds number dimensionless?

8 / 50

8. Which principle is used in the working of an Ostwald viscometer?

9 / 50

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

10 / 50

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

11 / 50

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

12 / 50

12. Work required to increase surface area of a liquid film by is given by:

13 / 50

13. A soap solution has surface tension . Calculate the work done in blowing a bubble of radius .

14 / 50

14. Which physical condition determines the validity of Stokes’ law?

15 / 50

15. A pollen grain of radius has density . If it falls in air of viscosity and density , calculate terminal velocity.

16 / 50

16. Which of the following is a technological application of wetting and spreading phenomena?

17 / 50

17. Which of the following flow regimes has the highest energy loss due to friction and eddies?

18 / 50

18. A detergent solution removes a grease patch of radius . If the energy required to increase surface area is , calculate the effective surface tension.

19 / 50

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

20 / 50

20. The excess pressure inside a gas bubble of radius in water () is:

21 / 50

21. A car weighing is to be lifted using a hydraulic lift. If the area of the large piston is and that of the small piston is , what minimum force must be applied on the small piston?

22 / 50

22. Which of the following is NOT an application of Pascal’s law?

23 / 50

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

24 / 50

24. Why do large raindrops deviate from perfect spherical shape as they fall?

25 / 50

25. Why do raindrops formed in warm conditions tend to be larger compared to cold conditions?

26 / 50

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

27 / 50

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

28 / 50

28. The drop number method for surface tension measurement involves:

29 / 50

29. In Reynolds’ experiment, when the velocity of water is gradually increased, the dye streak starts oscillating and breaking up. This shows:

30 / 50

30. Which of the following is a direct consequence of reduced atmospheric pressure at higher altitudes?

31 / 50

31. Which principle is used in the working of hydraulic lifts and hydraulic brakes?

32 / 50

32. Streamline flow is also known as:

33 / 50

33. A tank is filled with water up to a height of . Find the pressure at the bottom of the tank due to water column. (Take ).

34 / 50

34. What is the SI unit of surface tension?

35 / 50

35. A hydraulic jack has a small piston of radius and a large piston of radius . If a force of 200 N is applied to the small piston, calculate the force exerted by the large piston.

36 / 50

36. Which of the following is assumed negligible in Stokes’ law?

37 / 50

37. Why does terminal velocity increase with particle radius?

38 / 50

38. A spherical particle of radius and density falls through a fluid of density and viscosity . Calculate terminal velocity.

39 / 50

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

40 / 50

40. Water of density is filled in a container up to 8 m. Find the pressure at the bottom. ()

41 / 50

41. A swimming pool is deep. What is the difference in pressure between the top and bottom of the pool? (Take ).

42 / 50

42. Why does a perfume atomizer work effectively?

43 / 50

43. Which of the following best summarizes the cause of surface tension?

44 / 50

44. The unit “bar” is related to Pascal as:

45 / 50

45. Which scale of temperature has no negative values?

46 / 50

46. At what depth in water will the hydrostatic pressure be equal to twice the atmospheric pressure? (Take ).

47 / 50

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

48 / 50

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

49 / 50

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

50 / 50

50. Which of the following sports uses Bernoulli’s principle?

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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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