A block of metal is heated to a temperature much higher than the room temperature and allowed to cool in a room free from air currents, Which of the following curves correctly represents the rate of cooling ?

A block of metal is heated to a temperature much higher than the room

1.	A block of metal is heated to a temperature much higher than the room temperature and allowed to cool in a room free from air currents, Which of the following curves correctly represents the rate of cooling ?
Answer» ANSWER :B