JEE Main
- Exam
- JEE Main
- Subject
- Physics
- Chapter
- Experimental Physics
JEE Main · Physics · Experimental Physics
A cooling curve is plotted between the temperature of a hot body...
A cooling curve is plotted between the temperature of a hot body and time. Which of the following is not true for the cooling curve?
Options
- ACooling is faster from a calorimeter having a larger surface area than a smaller one.
- BCooling is faster from a calorimeter painted black from outside than that from a polished surfaced calorimeter.
- CCooling is faster from a copper calorimeter than from a steel calorimeter.
- DThe rate of cooling remains same throughout the experiment. Hence the graph is a straight line.
Correct answer
D. The rate of cooling remains same throughout the experiment. Hence the graph is a straight line.
Step-by-step solution
The rate of cooling is faster at the beginning and then decreases and becomes constant.