Question

Windows having double glass panes with some space between them is called double glazing. Why do windows in cold countries have double glazing?
options:
For the conduction of heat
For the convection of heat
For the radiation of heat
For the insulation of heat

Answer 1

Answer: for insulation of heat

Explanation:

Windows in cold countries have double glazing windows to provide a barrier against the outside temperature by creating a buffer zone between two glasses.

The air or any other gas-filled between the glasses act as an insulator and offer great resistance to outside temperature thereby maintaining the inside temperature intact.