NEET Physics: Mechanical Properties of Solids — MCQ Test 15

Q6. In the stress-strain behavior of a ductile material, what happens after the maximum stress the material can endure?

Q7. A brass block of dimensions \( 0.5 \, \text{m} \times 0.2 \, \text{m} \times 0.05 \, \text{m} \) is subjected to a shearing force of \( 2 \times 10^4 \, \text{N} \). If the shear modulus of brass is \( 3.6 \times 10^{10} \, \text{N/m}^2 \), what is the shear strain?

Q8. An aluminium wire of length \( 1.8 \, \text{m} \) and cross-sectional area \( 2 \times 10^{-6} \, \text{m}^2 \) is stretched by a force producing a strain of \( 2 \times 10^{-4} \). If the Young's modulus of aluminium is \( 7 \times 10^{10} \, \text{N/m}^2 \), what is the force applied?

Q9. A steel block of dimensions 0.2 m × 0.1 m × 0.05 m is subjected to a shearing force of 1 × 10 4 N. If the shear modulus of steel is 8.4 × 10 10 N/m 2 , what is the shear strain?

Q10. In the stress-strain behavior of a material, what occurs after the maximum stress point when the material is ductile?

NEET Physics — Mechanical Properties of Solids

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A brass block of dimensions \( 0.4 \, \text{m} \times 0.3 \, \text{m} \times 0.1 \, \text{m} \) is subjected to a shearing force of \( 3 \times 10^4 \, \text{N} \). If the shear modulus of brass is \( 3.6 \times 10^{10} \, \text{N/m}^2 \), 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, Altering, and Distinguishes.

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 brass block of dimensions \( 0.4 \, \text{m} \times 0.3 \, \text{m} \times 0.1 \, \text{m} \) is subjected to a shearing force of \( 3 \times 10^4 \, \text{N} \). If the shear modulus of brass is \( 3.6 \times 10^{10} \, \text{N/m}^2 \), what is the displacement of the top face?

  • A. \( 6 \times 10^{-7} \, \text{m} \)
  • B. \( 7.5 \times 10^{-7} \, \text{m} \)
  • C. \( 6.94 \times 10^{-7} \, \text{m} \)
  • D. \( 5 \times 10^{-7} \, \text{m} \)

Q2. 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

Q3. What distinguishes a ductile material from a brittle material in terms of stress-strain behavior?

  • A. Ductile materials have a larger shear modulus
  • B. Ductile materials undergo significant plastic deformation before fracture
  • C. Ductile materials break at a lower stress
  • D. Ductile materials have a lower bulk modulus

Q4. A water sample of volume \( 3 \, \text{litres} \) is compressed by a pressure of \( 4 \times 10^6 \, \text{N/m}^2 \). If the bulk modulus of water is \( 2.2 \times 10^9 \, \text{N/m}^2 \), what is the change in volume?

  • A. \( 5 \times 10^{-6} \, \text{m}^3 \)
  • B. \( 5.45 \times 10^{-6} \, \text{m}^3 \)
  • C. \( 6 \times 10^{-6} \, \text{m}^3 \)
  • D. \( 4 \times 10^{-6} \, \text{m}^3 \)

Q5. A rectangular block of aluminium with dimensions 0.5 m × 0.2 m × 0.1 m is subjected to a shearing force of 6 × 10 4 N. If the shear modulus of aluminium is 2.5 × 10 10 N/m 2 , what is the shear strain?

  • A. 2 × 10 -5
  • B. 2.4 × 10 -5
  • C. 3 × 10 -5
  • D. 1.5 × 10 -5

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