Explain what happens when the load on a metal wire suspended from a rigid support is gradually increased. Illustrate your answer with a suitable stress-strain graph.

One end of a uniform rod of mass M and cross-sectional area A is suspended from a rigid support and an equal mass M is suspended from the other end, what is the stress at the mid point of the rod.

Two wires of same length and material but of different radii are suspended from a rigid support. Both carry the same load. Will the stress, strain and extension in them be same or different ?

When a load of 10 kg is suspended on a metallic wire, its length increase by 2 mm. The force constant of the wire is

Two wires of the same length and material but different radii r_(1) and r_(2) are suspended from a rigid support both carry the same load at the lower end. The ratio of the stress devedoped in the second wire to that developed in the first wire is

A steel wire can withstand a load up to 2940N . A load of 150 kg is suspended from a rigid support. The maximum angle through which the wire can be displaced from the mean position, so that the wire dose not break when the load passs through the position of equilibrium, is

An Aluminum and Copper wire of same cross sectional area but having lengths in the ratio 2:3 are joined end to end. This composite wire is hung form a rigid support and a load is suspended form the free end. If the increases in length of the composite wire is 2.1mm the increses in lenghts of Aluminimum and Copper wirs are

What happens when chromatids fail to segregate during cell division cycle ? Explain your answer with an example.

What happens to the eye when you enter a darkened cinema hall from bright sunshine ? Give reason for your answer.

A unifrom rod is fixed at one end to a rigid support, its temperture is gradually increased the representaion of graph strain (e) versus increment in temperature Delta theta is

A copper wire and a steel wire of the same length and same cross-section are joined end to end to form a composite wire. The composite wire is hung form a rigid support and a load is suspended form the other end. If the increses in length of the composite wire is 2.4mm . then the increases in lenghts of steel and copper wires are