A) 40
B) 80
C) 100
D) 20
Correct Answer: D
Solution :
Let the quantity of heat supplied per minute be Q Then quantity of heat supplied in \[2\,\min \,\,=\,\,mC(90-80)\] In 4 min, heat supplied \[=\,\,2\,\,mC(90-80)\] \[\therefore \,\,\,2\,mC(90-80)\,=\,mL\,\,\,\Rightarrow \,\,\,\frac{L}{C}\,\,=\,\,20\]You need to login to perform this action.
You will be redirected in
3 sec