The length of a wire is 1.0 m and the area of cross-section is \[1.0\times {{10}^{-2}}\,c{{m}^{2}}\]. If the work done for increase in length by 0.2 cm is 0.4 joule, then Young's modulus of the material of the wire is

\[2\times {{10}^{10}}\,N/{{m}^{2}}\]

\[2.0\times {{10}^{10}}\,N/{{m}^{2}}\]

\[4\times {{10}^{10}}\,N/{{m}^{2}}\]

\[2.0\times {{10}^{11}}\,N/{{m}^{2}}\]

\[2\times {{10}^{10}}\,N/{{m}^{2}}\]

The length of a wire is 1.0 m and the area of cross-section is \[1.0\t

1.	The length of a wire is 1.0 m and the area of cross-section is \[1.0\times {{10}^{-2}}\,c{{m}^{2}}\]. If the work done for increase in length by 0.2 cm is 0.4 joule, then Young's modulus of the material of the wire is
A.	\[2.0\times {{10}^{10}}\,N/{{m}^{2}}\]
B.	\[4\times {{10}^{10}}\,N/{{m}^{2}}\]
C.	\[2.0\times {{10}^{11}}\,N/{{m}^{2}}\]
D.	\[2\times {{10}^{10}}\,N/{{m}^{2}}\]
Answer» D. \[2\times {{10}^{10}}\,N/{{m}^{2}}\]