Mechanical Prop...

Which of the following affects the elasticity of a substance?

A wire is stretched by a force $$F$$. If $$s$$ is the strain developed and $$Y$$ is Young's modulus of material of wire, then work done per unit volume is 

Two wires of same material and length but cross-sections in the ratio $$1:2$$ are used to suspend the same loads. The extensions in them will be in the ratio

A spherical ball contracts in volume by $$0.02\%$$ when subjected to a pressure of $$100$$ atmosphere. Assuming one atmosphere $$=10^8\ Nm^{-2}$$, the bulk modulus of the material of the ball is 

The bulk modulus of a perfectly rigid body is 

The amount of work done in increasing the length of a wire through $$1cm$$ will be

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

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

A steel ring of radius $$r$$ and cross sectional area $$A$$ is fitted onto a wooden disc of radius $$R(R>r)$$. If the Young's modulus of steel is $$Y$$, then the force with which the steel ring is expanded is 

A metallic rod of length $$l$$ and cross-sectional area $$A$$ is made of a material of Young modules $$Y$$. If the rod is elongated by an amount $$y$$, then the work done is proportional to