Let a wire be suspended from the ceiling (rigid support) and stretched by a weight W attached at its free end. The longitudinal stress at any point of cross-sectional area A of the wire is :

The maximum elongation of a steel wire of 1m length if the elastic limit of steel and its Young’s modulus, respectively, are

A metallic bar of Young’s modulus, and coefficient of linear thermal expansion to without expansion or bending. The compressive force developed in it is.

Let a wire be suspended from the ceiling (rigid support) and stretched by a weight W attached at its free end. The longitudinal stress at any point of cross-sectional area A of the wire is :

When a block of mass M is suspended by a long wire of length L, the length of the wire
becomes (L + l). The elastic potential energy stored in the extended wire is:

Copper of fixed volume 'V; is drawn into wire of length 'l'. When this wire is subjected to a constant force 'F', the extension produced in the wire is '∆l'. Which of the following graphs is a straight line?

Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): The stretching of a spring is determined by the shear modulus of the material of the spring.
Reason (R): A coil spring of copper has more tensile strength than a steel spring of same dimensions.
In the light of the above statements, choose the most appropriate answer from the options given below

The following four wires are made of the same material. Which of these will have the largest extension when the same tension is applied?

The bulk modulus of a spherical object is ‘B’. If it is subjected to uniform pressure ‘p’, the fractional decrease in radius is

The Young’s modulus of steel is twice that of brass. Two wires of same length and of same area of cross section, one of steel and another of brass are suspended from the same roof. If we want the lower ends of the wires to be at the same level, then the weights added to the steel and brass wires must be in the ration of: