A wire length L and cross sectional area A is made of material of Young's modulus Y . It is strectched by an amount X . The work done is

A wire length L and cross sectional area A is made of material of Youn

1.	A wire length L and cross sectional area A is made of material of Young's modulus Y . It is strectched by an amount X . The work done is
Answer» '(YXA/2L)' '(YX^2A)/L' `1/2(YX^2A)/L` `(2YX^2A)/L` ANSWER :C