(A) Y∝ (X)

(B) 2Y∝ (X)

(C) Y∝/2 (X)

**(D) Y∝2 ()**

Answers: **When a force is applied at one end of an elastic wire it produces at strain ∝ in the wire. If y is the youngs modulus of the meterial of the wire the amount of energy stored per unit volume of the wire is given by Y∝2**