NEET Physics: Mechanical Properties of Solids — MCQ Test 10

Q6. A copper wire of length 2 m and cross-sectional area 3 × 10 -6 m 2 is stretched by a force of 150 N. If the strain produced is 1 × 10 -3 , what is the Young's modulus of copper?

Q7. A steel wire of length \( 3.2 \, \text{m} \) and cross-sectional area \( 5 \times 10^{-6} \, \text{m}^2 \) is stretched by \( 0.8 \, \text{mm} \). If the Young's modulus of steel is \( 2 \times 10^{11} \, \text{N/m}^2 \), what is the force applied?

Q8. Why is steel often chosen over materials like copper for heavy-duty structural applications?

Q9. A glass slab of volume \( 0.015 \, \text{m}^3 \) is subjected to a hydraulic pressure of \( 2 \times 10^6 \, \text{N/m}^2 \). If the bulk modulus of glass is \( 3.7 \times 10^{10} \, \text{N/m}^2 \), what is the change in volume?

Q10. A glass slab of volume \( 0.025 \, \text{m}^3 \) is subjected to a hydraulic pressure of \( 4 \times 10^6 \, \text{N/m}^2 \). If the bulk modulus of glass is \( 3.7 \times 10^{10} \, \text{N/m}^2 \), what is the change in volume?

NEET PhysicsMechanical Properties of Solids

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A copper block of dimensions \( 0.5 \, \text{m} \times 0.3 \, \text{m} \times 0.1 \, \text{m} \) is subjected to a shearing force of \( 6 \times 10^4 \, \text{N} \). If the shear modulus of copper is \( 4.2 \times 10^{10} \, \text{N/m}^2 \), what is the displacement of the top face?

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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 Mechanical Properties of Solids. 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 Dimensions, Subjected, Shearing, Displacement, Sectional, and Stretched.

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. A copper block of dimensions \( 0.5 \, \text{m} \times 0.3 \, \text{m} \times 0.1 \, \text{m} \) is subjected to a shearing force of \( 6 \times 10^4 \, \text{N} \). If the shear modulus of copper is \( 4.2 \times 10^{10} \, \text{N/m}^2 \), what is the displacement of the top face?

  • A. \( 9 \times 10^{-7} \, \text{m} \)
  • B. \( 9.52 \times 10^{-7} \, \text{m} \)
  • C. \( 1 \times 10^{-6} \, \text{m} \)
  • D. \( 8 \times 10^{-7} \, \text{m} \)

Q2. A copper wire of length \( 2.2 \, \text{m} \) and cross-sectional area \( 1.8 \times 10^{-6} \, \text{m}^2 \) is stretched by a force of \( 180 \, \text{N} \). If the Young's modulus of copper is \( 1.1 \times 10^{11} \, \text{N/m}^2 \), what is the strain?

  • A. \( 8 \times 10^{-4} \)
  • B. \( 1 \times 10^{-3} \)
  • C. \( 9.09 \times 10^{-4} \)
  • D. \( 7 \times 10^{-4} \)

Q3. A water sample of volume \( 1.5 \, \text{litres} \) is compressed by a pressure of \( 3 \times 10^6 \, \text{N/m}^2 \). If the bulk modulus of water is \( 2.2 \times 10^9 \, \text{N/m}^2 \), what is the fractional change in volume?

  • A. \( 1 \times 10^{-3} \)
  • B. \( 1.5 \times 10^{-3} \)
  • C. \( 2 \times 10^{-3} \)
  • D. \( 1.36 \times 10^{-3} \)

Q4. A steel wire of length \( 3.0 \, \text{m} \) and cross-sectional area \( 2 \times 10^{-6} \, \text{m}^2 \) is stretched by a force of \( 200 \, \text{N} \). If the Young's modulus of steel is \( 2 \times 10^{11} \, \text{N/m}^2 \), what is the elongation?

  • A. \( 1.5 \, \text{mm} \)
  • B. \( 2 \, \text{mm} \)
  • C. \( 1 \, \text{mm} \)
  • D. \( 3 \, \text{mm} \)

Q5. Which type of stress causes a change in the shape of a body without altering its volume?

  • A. Tensile stress
  • B. Compressive stress
  • C. Shearing stress
  • D. Hydraulic stress

+ 5 more questions in the actual test

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