Physics - Heat & Thermo Question with Solution | TestHub

A rectangular metal plate of dimension $(\mathrm{a}\times \mathrm{b})$ having two holes of radii ${\mathrm{r}}_1$ and ${\mathrm{r}}_2\left({\mathrm{r}}_1>{\mathrm{r}}_2\right)$ and their positions are shown in the figure. Now the plate is heated such that its temperature rises by $\Delta \mathrm{T}$. Then separation between the holes