JEE Main & Advanced
Sample Paper
JEE Main Sample Paper-42
question_answer
A body cools from \[100{}^\circ C\] to \[90{}^\circ C\] in 20 min, it will cool down from \[110{}^\circ C\] to \[100{}^\circ C\] in [Assume same surroundings]
A) 20 min
B) less than 20 min
C) more than 20 min
D) 30 min
Correct Answer:
B
Solution :
Hotter body emits radiation at a faster rate as compared to colder body.