MCQ
A deep rectangular pond of surface area $A,$ containing water (denstity $=\rho,$ specific heat capactly $=s$ ), is located In a region where the outside air temperature is at a steady value of $-26^{\circ} {C}$. The thickness of the frozen ice layer In this pond, at a certaln Instant Is $x$.
Taking the thermal conductivity of Ice as ${K}$, and its specific latent heat of fusion as $L$, the rate of Increase of the thickness of ice layer, at this instant would be given by
- A$26 \mathrm{K} / \mathrm{\rho r}(\mathrm{L}-4 \mathrm{s})$
- B$26 \mathrm{K} /\left(\rho \mathrm{x}^{2}-\mathrm{L}\right)$
- ✓$26 K /(\rho x L)$
- D$26 \mathrm{K} / \mathrm{\rho r}(\mathrm{L}+4 \mathrm{s})$
