Mechanical Prop...

Velocity of sound, (Y) youngs modules, and p density of solid are related as

(i) In Searle's experiment, after every step of loading, one waits for sometime (2 or 3 min) before taking reading.
(ii) In this duration, the wire becomes free from kinks.

The modulus of elasticity of a material does not depend upon

The ratio of change in dimension at right angles to applied force to the initial dimension is defined as

A wire is stretched through $$1 mm$$ by certain load. The extension produced in the wire of same material with double the length and radius will be

Equal weights are suspended from the wires of same material and same lengths but with radii in the ratio $$1 : 2$$. The ratio of extensions produced in them will be

The modulus of elasticity at constant temperature is

A stress of $$2\ kg/mm^{2}$$ is applied on a wire. If $$Y=10^{12}\ dyne/cm^2$$ then the percentage increase in its length will be

The expression for the determination of Poisson's ratio for rubber is

A wire of length L and cross-sectional area A is constructed of a material whose Young's modulus of elasticity is Y. The energy density stored in the wire when stretched by $$x$$ meter will be