List of top Physics Questions on mechanical properties of solids asked in AP EAPCET

The elastic behavior of a material for linear stress to linear strain is given in the figure. The energy density for a linear strain of \(4\times10^{-4}\) is center

center

A wire of weight W and area of cross-section A elongates under its own weight. If Y is the Young's modulus and \(\sigma\) is the Poisson's ratio of the material of the wire, then the fractional change in the radius of the wire is:

A uniform metal wire is suspended from a rigid ceiling and a solid sphere is attached to the second end of the wire. If the radius of the sphere is doubled and then immersed in a liquid whose density is 60% of the density of the material of the sphere, then the percentage increase in the elongation of the wire is:

A copper wire of negligible mass, length 1 m and area of cross-section $10^{-6}\text{m}^{2}$ is kept on a smooth horizontal table. One end of the wire is fixed and other end of the wire attached with a ball of mass 1 kg. If the ball and wire are rotating with 20 rad $\text{s}^{-1}$, an elongation of $10^{-3}\text{m}$ is observed in the wire, find its Young's modulus

A wire extends by $1$ mm under $100$ N. Extension under $300$ N is:

Pressure of $2 \times 10^6$ Pa causes volume decrease of $0.1\%$ in a material. Bulk modulus is:

A copper rod and an iron rod of the same length have their temperature raised by the same amount. If the coefficient of linear expansion of copper is greater than that of iron, then

If we consider a rectangular sheet of the solid, the coefficient of areal expansion is:

In the case of a wire, having negligible mass suspended from ceiling and stretched under the action of a weight \(F\) suspended from its other end, the tension at any cross-section of the wire is