Mechanical Prop...

Consider the following two statements A and B and identify the correct answer.
A) When the length of a wire is doubled, the Young's modulus of the wire is also doubled
B) For elastic bodies Poisson's ratio is + Ve and for inelastic bodies Poissons ratio is -Ve

The poisson's ratio cannot have the value

Consider the following two statements A and B and identify the correct answer.
A) The bulk modulus for an incompressible liquid is infinite.
B) Young's modulus increases with raise of temperature.

Consider the following two statements A and B and identify the correct answer.
A) We cannot define Young's modulus and rigidity modulus for liquids and gases.
B) The theoretical limits of Poisson's ratio are 1 to 0.5

Consider the statements A and B, identify the correct answer given below :
(A) : If the volume of a body remains unchanged when subjected to tensile strain, the value of poisson's ratio is 1/2.
(B) : Phosper bronze has low Young's modulus and high rigidity modulus. 

Strain energy per unit volume in a stretched string is

Possible value of Poisson's ratio is

Assertion (A) : Lead is more elastic than rubber.
Reason (R) : If the same load is attached to lead and rubber wires of the same cross-sectional area, the strain of lead is very much less than that of rubber.

Consider the following two statements A and B and identify the correct answer .
A) A metal wire held vertically is longer than when it placed on a horizontal table.
B) Due to its own weight, some elongation is produced when it is held vertically.

The Poisson's ratio $$\sigma$$ should satisfy the relation :