Q2Multiple choice
A beggar wrapped himself with a few layers of newspaper on a cold winter night. This helped him to keep himself warm because
- (a)friction between the layers of newspaper produces heat.
- (b)air trapped between the layers of newspaper is a bad conductor of heat.
- (c)newspaper is a conductor of heat.
- (d)newspaper is at a higher temperature than the temperature of the surrounding.
Show answer
(b) air trapped between the layers of newspaper is a bad conductor of heat.