A cottage wall is to be built using an inner layer of brick (thermal conductivity…
PHYSICS · Subjective · CBSE · Physics · Thermal Properties of Matter · Thermal Properties of Matter
Problem
A cottage wall is to be built using an inner layer of brick (thermal conductivity 0.80 W·m⁻¹·K⁻¹) and an outer layer of wood (0.12 W·m⁻¹·K⁻¹). Which material should form the outer surface so that heat loss from the cottage during winter is minimum? Give a brief reason.