Elasticity Test...

A wire whose cross-section area is A₁ is stretched by L₁ by a certain weight. How far will a wire of same material and same length and cross-section area A₂ stretch if same weight is applied to it

The material which practically does not show elastic after effect is 

The relationship between Young's modulus Y, Bulk modulus K and modulus of rigidity n is

Why the spring is made up of steel in comparison of copper?

The quality of the material which opposes the change in shape, volume or length is called

Which one of the following substances possesses the highest elasticity:

Which of the following affects the elasticity of a substance

The Young's modulus of the material of a wire is 6×10¹²N/m² and  there is no transverse strain in it, then its modulus of rigidity will be

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

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: