A glass full of hot milk is poured in the table. It begins to cool gradually.
Which of the following is incorrect?

Options

A. The rate of cooling is constant till milk attains the temperature of the surroundings
B. The temperature of milk falls off exponentially with time.
C. While cooling, there is a flow of heat from milk to the sourroundings as well as from surroundings to the milk but the net flow of heat is from milk to the surroundings and that is why it cools.
D. All three phenomenon, conduction, convection and radiation are responsible for the loss of heat from milk to the surroundings.

Answer

A

Explanation

The heat from hot milk spread on the table is transferred to the surroundings by conduction. Convection and radiation. According to Newton's law of cooling the temperature of milk falls exponentially with time.