NEET Physics: Thermal Properties of Matter — MCQ Test 10

Q6. Which temperature scale uses \( 32^\circ \) and \( 212^\circ \) as the freezing and boiling points of water at standard pressure?

Q7. A brass ring has an inner diameter of \( 10 \, \text{cm} \) at \( 40^\circ \text{C} \). What temperature must it be cooled to for the diameter to decrease by \( 0.009 \, \text{cm} \)? (\( \alpha_l = 1.8 \times 10^{-5} \, \text{K}^{-1} \))

Q8. A \( 0.15 \, \text{kg} \) aluminium block at \( 280^\circ \text{C} \) is placed in \( 0.7 \, \text{kg} \) water at \( 22^\circ \text{C} \) in a \( 0.05 \, \text{kg} \) lead calorimeter at \( 22^\circ \text{C} \). What is the final temperature? (Specific heat of aluminium = \( 900 \, \text{J kg}^{-1} \text{K}^{-1} \), water = \( 4186 \, \text{J kg}^{-1} \text{K}^{-1} \), lead = \( 127.7 \, \text{J kg}^{-1} \text{K}^{-1} \))

Q9. Why do gases expand more than solids for the same temperature increase?

Q10. What happens to the boiling point of a liquid when external pressure decreases?

NEET PhysicsThermal Properties of Matter

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How much heat is required to raise the temperature of \( 2 \, \text{kg} \) of water from \( 20^\circ \text{C} \) to \( 50^\circ \text{C} \)? (Specific heat capacity of water = \( 4186 \, \text{J kg}^{-1} \text{K}^{-1} \))

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About this NEET MCQ Test

This page provides a free online MCQ test for NEET Physics preparation, focusing specifically on the chapter Thermal Properties of Matter. It contains 10 carefully selected multiple-choice questions (MCQs) designed to test your conceptual understanding and exam readiness.

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Key concepts covered in this specific test include Required, Temperature, Specific, Capacity, Calculate, and Increase.

Taking these timed MCQ tests helps you simulate the real NEET exam environment. Detailed step-by-step explanations are provided for every question to help you learn from your mistakes and strengthen your fundamentals.

Preview of Questions in this Test

Q1. How much heat is required to raise the temperature of \( 2 \, \text{kg} \) of water from \( 20^\circ \text{C} \) to \( 50^\circ \text{C} \)? (Specific heat capacity of water = \( 4186 \, \text{J kg}^{-1} \text{K}^{-1} \))

  • A. 250 kJ
  • B. 251.16 kJ
  • C. 260 kJ
  • D. 240 kJ

Q2. A brass rod of length \( 2 \, \text{m} \) at \( 25^\circ \text{C} \) is heated to \( 125^\circ \text{C} \). Calculate the increase in length. (Coefficient of linear expansion of brass = \( 1.8 \times 10^{-5} \, \text{K}^{-1} \))

  • A. 3.5 mm
  • B. 3.6 mm
  • C. 3.8 mm
  • D. 4.0 mm

Q3. A silver ring has an inner circumference of \( 31.4 \, \text{cm} \) at \( 15^\circ \text{C} \). What temperature must it be heated to for the circumference to increase by \( 0.0597 \, \text{cm} \)? (\( \alpha_l = 1.9 \times 10^{-5} \, \text{K}^{-1} \))

  • A. 110°C
  • B. 112°C
  • C. 115°C
  • D. 120°C

Q4. A copper block of mass \( 0.5 \, \text{kg} \) at \( 100^\circ \text{C} \) is dropped into \( 1 \, \text{kg} \) of water at \( 20^\circ \text{C} \). Find the final temperature. (Specific heat of copper = \( 386 \, \text{J kg}^{-1} \text{K}^{-1} \), water = \( 4186 \, \text{J kg}^{-1} \text{K}^{-1} \))

  • A. 22°C
  • B. 23.5°C
  • C. 25°C
  • D. 20°C

Q5. A silver wire of length \( 1.2 \, \text{m} \) at \( 25^\circ \text{C} \) is cooled until its length decreases by \( 0.0228 \, \text{cm} \). What is the final temperature? (\( \alpha_l = 1.9 \times 10^{-5} \, \text{K}^{-1} \))

  • A. 15°C
  • B. 16°C
  • C. 14°C
  • D. 17°C

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