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1. |
A body cools from 100°C to 70°C in 8 minutes. If the room temperature is 15°C and assuming Newton’s law of cooling holds good, then time required for the body to cool from 70°C to 40°C is ? |
A. | 14 s |
B. | 10 s |
C. | 8 s |
D. | 5 s |
Answer» B. 10 s | |