Mechanical Properties of Solids Quiz 2

A force of 1 N doubles the length of a cord having cross-sectional area 1 mm . The Young’s modulus of the material of cord is

In equilibrium the tensile stress to which a wire of radius r is subjected by attaching a mass ‘m’ is ____.

When load is applied to a wire, the extension is 3 mm, the extension in the wire of same length but half the radius by the same load is

The S.I. unit of compressibility is ____.

When the pressure applied to one litre of a liquid in increased by $2 \times 10 ^6 N/m ^2.$ It volume decreases by $1 cm ^3.$ The bulk modulus of the liquid is

A cube of aluminium of each side 0.1 m is subjected to a shearing force of 100 N. The top face of the cube is displaced through 0.02 cm with respect to the bottom face. The shearing strain would be

A wire has Poisson’s ratio of 0.5. It is stretched by an external force to produce a longitudinal strain of $2 \times 10 ^{-3}.$ If the original diameter was 2 mm, the final diameter after stretching is

The compressibility of a substance is the reciprocal of ___.

For which of the following is the modulus of rigidity highest?

An elongation of 0.2% in a wire of crosssection $10^{-4} m^2$ causes a tension of 1000 N. Then its Young’s modulus is