A 5 metre long wire is fixed to the ceiling. A weight of 10 kg is hung at the lower end and is 1 metre above the floor. The wire was elongated by 1 mm.The energy stored in the wire due to stretching is

A material has poisson’s ratio 0.50. If a uniform rod of its uffers a longitudinal strain of 2× 10^–3, then the percentage change in volume is

The diagram below shows the change in the length X of a thin uniform wire caused by the application of stress F at two different temperatures T₁ and T₂. The variation shown suggests that

If a rubber ball is taken at the depth of 200 m in a pool, its volume decreases by 0.1%. If the density of the water is 1 × 10³kg/m³ and g = 10m/s², then the volume elasticity in N/m² will be

K is the force constant of a spring. The work done in increasing its extension from l₁ to l₂ will be

What per cent of length of wire increases by applying a stress of 1 kg weight/mm² on it?(Y = 1× 10¹¹N/m² and 1 kg weight = 9.8 newton)

When a pressure of 100 atmosphere is applied on a spherical ball, then its volume reduces to 0.01%. The bulk modulus of the material of the rubber in dyne/cm² is

On stretching a wire, the elastic energy stored per unit volume is

A metalic rod of length land cross-sectional area A is made of a material of Young modulus Y. If the rod is elongated by an amount y, then the work done is proportional to

A wire fixed at the upper end stretches by length l by applying a force F. The work done in stretching is