Home
Class 12
PHYSICS
A metal rod of Young's modulus 2xx10^(10...

A metal rod of Young's modulus `2xx10^(10)Nm^(-2)` undergoes an elastic strain of `0.06%.` The energy per unit volume stored in `Jm^(-3)`is

A

3600

B

7200

C

1800

D

900

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Similar Questions

Explore conceptually related problems

Show that average kinetic energy per unit volume of the gas is 3/2P .

When an elastic material with Young's modulus Y is subjected to stretching stress S, the elastic energy stored per unit volume of the material is

The Young's modulus of a material is 2xx10^(11)N//m^(2) and its elastic limit is 1xx10^(8) N//m^(2). For a wire of 1 m length of this material, the maximum elongation achievable is

The diameter of a brass rod is 4 mm and Young's modulus of brass is 9 xx 10^(10) N//m^(2) . The force required to stretch by 0.1 % of its length is

A steel wire of length 5 m and area of cross-section 4 mm^(2) is stretched by 2 mm by the application of a force. If young's modulus of steel is 2xx10^(11)N//m^(2), then the energy stored in the wire is

The bulk modulus of a gas is 6xx10^(3) N//m^(2). The additional pressure needed to reduce the volume of the liquid by 10% is

The reading of pressure meter attached with a closed pipe is 3.5 xx 10^(5)Nm^(-2) . On opening the valve of the pipe, the reading of the pressure meter is reduced to 3.0 xx 10^(5) Nm^(-2) . Calculate the speed of the water flowing in the pipe.

Two wires having same length and material are stretched by same force. Their diameters are in the ratio 1:3. The ratio of strain energy per unit volume for these two wires (smaller to larger diameter) when stretched is

The rate of emission of heat energy per unit area of an iron ball of radius 10 cm is 10J//m^2s s, then rate ·of emission of heat energy per unit area by a copper ball of radius 5 cm at same temperature will be ( emissivity of both the balls is same)

A steal wire of cross-section area 3xx10^(-6) m^(2) can withstand a maximum strain of 10^(-3) .Young's modulus of steel is 2xx10^(11) Nm^(-2) .The maximum mass this wire can hold is