Home
Class 11
PHYSICS
A metal rod of Young's modulus 2 xx 10^...

A metal rod of Young's modulus `2 xx 10^10 Nm^(-2)` undergoes an elastic strain of 0.02% the energy per unit volume stored in the rod in joule/`m^3` is

A

400

B

800

C

1200

D

1600

Text Solution

Verified by Experts

The correct Answer is:
1
Promotional Banner

Similar Questions

Explore conceptually related problems

A rod of Young.s modulus 20 GPa undergoes a linear strain of 6xx10^(-4) . Then increase in its energy density is ---

Under the application of force, a steel wire ( Y = 19xx10^10 N m^-2 ) of 5 m in length suffers an elongation of 1 mm. The potential energy stored per unit volume in this process, in J//m^3 is

A uniform rectangular block of mass 50 kg is hung horizontally with the help of three wires A, B and C each of length and area of 2 m and 10 mm^2 respectively as shown in the figure. The central wire is passing through the centre of gravity and is made of a material of Young's modulus 7.5 xx 10^10 Nm^(-2) and the other two wires A and C symmetrically placed on either side of the wire B are of Young's modulus 10^11 Nm^(-2) . The tension in the wires A and B will be in the ratio of

A uniform wire (Young.s modulus 2xx10^(11) Nm^(-2) ) is subjected to longitudinal tensile stress of 5 xx 10^(7)Nm^(-2) . If the overall volume change in the wire is 0.02%, the fractional decrease in the radius of the wire is close to :

Each of three blocks shown in figure has a mass 3kg. The wire connecting, blocks A and B has area of cross-section 0.005 cm^2 and Young's modulus of elasticity Y = 2xx10^11 N//m^2 . Neglect friction. Find the elastic potential energy stored per unit volume in wire connecting blocks A and B in steady state

The youngs modulus of the material of a rod is 20xx10^10 pascal. When the longitudinal strain is 0.04%, The energy stored per unit volume is

A rope of rubber of density 1.5xx 10^(3) Kg//m^(3) and Young.s modulus 5 xx 10^(6) N//m^(2) , 8m in length is hung from the ceiling of a room. Then the increase in length due to its own weight is