NEET Physics Mechanical Properties Of Solids MCQs

A wire of length L and cross-sectional area A is stretched by a force F. If Young's modulus of the material of the wire is Y, the elongation produced in the wire is:

Two wires of the same material and length but different cross-sectional areas A1 and A2 (A1 > A2) are subjected to the same tensile force. Which wire will experience a greater elongation?

The unit of Young's modulus is:

Young's modulus is a measure of a material's:

If the length of a wire is doubled and its radius is halved, keeping the force constant, how does the elongation change?

Which of the following materials generally has the highest Young's modulus?

A wire of length L and cross-sectional area A is stretched by a force F. If the Young's modulus of the material is Y, which of the following expressions correctly represents the strain energy stored in the wire?

Two wires of the same material and length have radii $r_1$ and $r_2$ respectively. If the same force is applied to both, what is the ratio of the extensions produced?

A metal wire of Young's modulus $2 imes 10^{11} \, N/m^2$ undergoes a strain of $10^{-3}$. What is the energy stored per unit volume in the wire?

Which of the following materials is likely to have the highest Young's modulus?