Question

On a frigid winter night, a beggar wrapped himself in many layers of newspaper. This helped him stay warm because __________________________.

• A. heat is produced by friction between the layers of newspaper
• B. air trapped between the layers of a newspaper is a poor conductor of heat
• C. the temperature of the newspaper is higher than the ambient temperature
• D. the temperature of the newspaper is lesser than the ambient temperature

Answer 1

The correct option is B air trapped between the layers of a newspaper is a poor conductor of heat

A beggar wrapped himself with a few layers of newspapers on a cold winter night. When he wrapped the layers of newspaper, the air got trapped between those layers. We know that air is a bad conductor of heat. Thus, the air trapped between the layers of a newspaper does not allow the heat to flow.

Thus, the layers of newspaper helped the beggar to keep himself warm because the air trapped between the layers of newspaper is a bad conductor of heat.