- 1(current)
Q. No.Newton’s law of cooling is a special case of:
1. Wien’s displacement law
2. Kirchhoff's law
3. Stefan’s law
4. Planck’s law
Subtopic: Newton's Law of Cooling |
69%
Level 2: 60%+
Hints
A hot liquid is kept in a big room. Its temperature is plotted as a function of time. Which of the following curves may represent the plot?
1. \(a\)
2. \(b\)
3. \(c\)
4. \(d\)
Subtopic: Newton's Law of Cooling |
65%
Level 2: 60%+
Hints
A hot liquid is kept in a big room. The logarithm of the numerical value of the temperature difference between the liquid and the room is plotted against time. The plot will be very nearly
1. a straight line
2. a circular arc
3. a parabola
4. an ellipse.
Subtopic: Newton's Law of Cooling |
62%
Level 2: 60%+
Hints
A body cools down from \(65^\circ \text{C}\) to \(60^\circ \text{C}\) in \(5\) minutes. It will cool down from \(60^\circ \text{C}\) to \(55^\circ \text{C}\) in:
| 1. | \(5\) minutes |
| 2. | less than \(5\) minutes |
| 3. | more than \(5\) minutes |
| 4. | less than or more than \(5\) minutes depending on whether its mass is more than or less than \(1~\text{kg}\) |
Subtopic: Newton's Law of Cooling |
80%
Level 1: 80%+
Hints
- 1(current)
Q. No.
© 2025 GoodEd Technologies Pvt. Ltd.