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 colling, 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 surrounding and that is why it cools
D. All three phenomenon, conduction, convention and radiation are responsible for the loss of heat from milk to the surroundings

Explanation

To solve the question regarding the cooling of hot milk poured on a table, we need to analyze the statements provided and determine which one is incorrect based on the principles of heat transfer and Newton's law of cooling.

### Step-by-Step Solution:

1. **Understanding the Scenario**:
- When hot milk is poured on the table, it starts to cool down gradually. This cooling occurs due to heat transfer from the milk to the surrounding environment (the table and air).

2. **Identifying Heat Transfer Mechanisms**:
- Heat transfer can occur through three main mechanisms: conduction, convection, and radiation.
- **Conduction**: Heat is transferred through direct contact (between the milk and the table).
- **Convection**: Heat is transferred through the movement of fluids (the air around the milk).
- **Radiation**: Heat is transferred in the form of electromagnetic waves (heat radiating from the milk).

3. **Applying Newton's Law of Cooling**:
- According to Newton's law of cooling, the rate of heat loss of a body is directly proportional to the difference in temperature between the body and its surroundings, provided this temperature difference is small.
- The temperature of the milk will decrease exponentially over time as it approaches the temperature of the surroundings.

4. **Analyzing the Options**:
- **Option A**: "The rate of cooling is constant till milk attains the temperature of the surrounding."
- This statement is incorrect because the rate of cooling is not constant; it decreases as the temperature difference between the milk and the surroundings decreases.
- **Option B**: "The temperature of milk falls off exponentially with time."
- This statement is correct as per Newton's law of cooling.
- **Option C**: "While cooling, there is a flow of heat from milk to the surrounding as well as from surrounding to the milk."
- This statement is partially correct; while heat does flow in both directions, the dominant flow is from the milk to the surroundings.
- **Option D**: "All three phenomena that is conduction, convection, and radiation, are responsible for the loss of heat from milk to the surroundings."
- This statement is correct as all three mechanisms contribute to the cooling process.

5. **Conclusion**:
- The incorrect statement is **Option A**.

### Final Answer:
The incorrect statement is: **"The rate of cooling is constant till milk attains the temperature of the surrounding."**