A) \[25{}^\circ C\]
B) \[42.85{}^\circ C\]
C) \[40{}^\circ C\]
D) \[38.5{}^\circ C\]
Correct Answer: B
Solution :
Using the relation Rate of loss of heat\[\propto -{{}_{D}}\]where\[\]is the average temperature in the given time interval. So, \[\frac{{{M}_{c}}(60{}^\circ -50{}^\circ }{10}\propto \left( \frac{60{}^\circ +50{}^\circ }{2}-25{}^\circ \right)\] On solving we get \[\text{=42}\text{.85}{}^\circ \text{C}\]You need to login to perform this action.
You will be redirected in
3 sec