Mechanical Properties of Solids

10 solved questions from Class 11 Physics, each with the full working. Tap any question to see the step-by-step solution.

1 What is the fundamental law or governing principle of 'Mechanical Properties of Solids' in Class 11 Physics? medium MCQ Fundamental Physical Law
2 What is the SI unit and dimensional formula for the key physical quantity studied in 'Mechanical Properties of Solids'? medium MCQ SI Units & Dimensional Analysis
3 How does the field or potential intensity vary with distance r in 'Mechanical Properties of Solids'? medium MCQ Spatial Distance Dependence
4 What is the net flux or circulation integral through a closed surface in 'Mechanical Properties of Solids'? medium MCQ Gauss's Theorem & Boundary Integrals
5 Why do field lines in 'Mechanical Properties of Solids' never intersect each other? medium MCQ Field Line Properties
6 A steel wire of length 2 m and cross‐sectional area 1.0 cm² has a Young’s modulus of 200 GPa. If a force of 1000 N is applied, what is its extension in millimetres? easy 1 mark Extension due to Hooke’s law
7 A cube of side 0.20 m is compressed by a uniaxial stress of 300 MPa. The side length decreases by 0.30 mm along the load direction and increases by 0.15 mm perpendicular to the load. What is the Poisson’s ratio of the material? medium 2 marks Poisson’s ratio calculation
8 A solid cylindrical shaft of radius 5 cm and length 1 m has a shear modulus of 80 GPa. It is twisted by a torque of 2.0×10⁵ N·m. Find the angle of twist in radians. hard 4 marks Angle of twist using shear modulus
9 A metal block of volume 0.05 m^3 has a bulk modulus of 120 GPa. If a uniform external pressure of 4 MPa is applied, what is the fractional change in volume of the block? easy 3 marks Bulk modulus and volumetric strain
10 A steel rod of length 1.5 m and cross‑sectional area 0.8 cm^2 has Young’s modulus 210 GPa. If a tensile force of 800 N is applied, what is the extension of the rod in millimetres? medium 4 marks Young’s modulus and linear deformation