A) \[5\text{ }min\text{ }20\text{ }s\]
B) \[8\text{ }min\text{ }20\text{ }s\]
C) \[10\text{ }min\text{ }40\text{ }s\]
D) \[12\text{ }min\text{ }50\text{ }s\]
Correct Answer: B
Solution :
As, heat gained by water = Heat supplied - heat loss \[ms\Delta \theta =1000t-100t\](by the question) \[t=\frac{2\times 4200\times 50}{840}=8\,\min \,20s\]You need to login to perform this action.
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