Two wires of diameter `0.25 cm`, one made of steel and other made of brass, are loaded as shown in the figure. The unloaded length of the steel wire is `1.5 m` and that of brass is `1.0 m`. Young's modulus of steel is `2.0 xx 10^(11)`Pa and that of brass is `1.0 xx 10^(11)` Pa. Compute the ratio of elongations of steel and brass wires. `(/_\l_("steel"))/(/_\l_("brass"))=?`

Options

A. `1.3 xx 10^(-2) m, 1.5 xx 10^(-4) m`
B. ` 1.5 xx 10^(-4) m , 1.3 xx 10^(-2) m`
C. `2.0xx10^(-5) m , 1.8xx10^(-3)`
D. `1.8xx10^(-3),2.0xx10^(-5) m `

Answer

B