Elasticity Test...

If the Bulk Modulus of lead is 8.0×10⁹ N/m² and the initial density of the lead is 11.4 g/cc, then under the pressure of 2.0×10⁸ N/m², the density of the lead is

When the temperature of a gas is constant at 20°C and pressure is changed from P₁=1.01×1⁰⁵ Pa to P2=1.165×10⁵ Pa, then the volume changes by 10%. The Bulk modulus of the gas is

When a rubber ball is taken to the bottom of a sea of depth 1400 m, its volume decreases by 2%. The Bulk Modulus of rubber ball is [density of water is 1 g cc and g = 10 m/s²]

A spherical ball contracts in volume by 0.02%, when subjected to a normal uniform pressure of 50 atmosphere. The Bulk Modulus of its material is

For an elastic material

A wire is 2 m in length suspended vertically stretches by 10 mm when mass of 10 kg is attached to the lower end. The elastic potential energy gain by the wire is (take g = 10 m/s²)

A wire of length L and cross-sectional area A is made of material of Young's Modulus Y. The work done in stretching the wire by an amount x is

Two exactly similar wires of steel and copper are stretched by equal forces. If the total elongation is 2 cm, then how much is the elongation in steel and copper wire respectively? Given, Y_steel = 20 × 10¹¹ dyne/cm², Y_copper = 12 × 10¹¹ dyne/cm².

Energy stored per unit volume in a stretched wire having Young's Modulus Y and stress 'S' is

A wire suspended vertically from one end and is stretched by attaching a weight 200 N to the lower end. The weight stretches the wire by 1 mm. The elastic potential energy gained by the wire is