Question

Black objects absorb more heat than white or polished ones. Give two daily uses of this principle.

Answer 1

The everyday uses of the principle that black objects absorb more heat than white or polished ones are as follows:

1) Cooking utensils have black-polished/black-painted outer surface to absorb more heat. This helps in cooking the food in less time.
2) During winters, we wear black or dark coloured clothes, as these can absorb more heat and keep us warm than the white or dull coloured ones.