Question

Two thin blankets piled together are warmer than a single one of the same total thickness as the two because

• A. Air is enclosed
• B. The distance of the heat transmission increases
• C. Total surface increases
• D. It is a wrong statement

Answer 1

The correct option is A Air is enclosed

When we take two thin blankets piled together , then air is enclosed between the layers of blankets . As air is bad conductor of heat , so it prevents heat transmission from our body to outside , and body remain warm hence , this combination is warmer than a single blanket of same total thickness as the two are .