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 surrounding.
B. The temperature of milk falls off exponentially with time.
C. While cooling, there is a flow of heat from milk to the surrounding as well as from surrounding 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 radiations are responsible for the loss of heat from milk to the surroundings.

Answer

B, C, D

Explanation

When hot milk is poured on the table, heat is transferred from milk to the surroundings by conduction, convection and radiation, and temperature falls off exponentially according to Newton.s law of cooling.