141140 A wire of initial length $L$ and radius $r$ is stretched by a length $\boldsymbol{l}$. Another wire of same material but with initial length $2 L$ and radius $2 \mathrm{r}$ is stretched by a length $2 l$. The ratio of stored elastic energy per unit volume in the first and second wire is
141140 A wire of initial length $L$ and radius $r$ is stretched by a length $\boldsymbol{l}$. Another wire of same material but with initial length $2 L$ and radius $2 \mathrm{r}$ is stretched by a length $2 l$. The ratio of stored elastic energy per unit volume in the first and second wire is
141140 A wire of initial length $L$ and radius $r$ is stretched by a length $\boldsymbol{l}$. Another wire of same material but with initial length $2 L$ and radius $2 \mathrm{r}$ is stretched by a length $2 l$. The ratio of stored elastic energy per unit volume in the first and second wire is
141140 A wire of initial length $L$ and radius $r$ is stretched by a length $\boldsymbol{l}$. Another wire of same material but with initial length $2 L$ and radius $2 \mathrm{r}$ is stretched by a length $2 l$. The ratio of stored elastic energy per unit volume in the first and second wire is
141140 A wire of initial length $L$ and radius $r$ is stretched by a length $\boldsymbol{l}$. Another wire of same material but with initial length $2 L$ and radius $2 \mathrm{r}$ is stretched by a length $2 l$. The ratio of stored elastic energy per unit volume in the first and second wire is