QuestionThermal physics / Newton's law of cooling
A cup of tea is placed at a table, and the room temperature is 35°C. The tea cools from 90°C to 70°C in 5 minutes. Which one among the following is the correct time taken for the tea to cool from 70°C to 50°C ?
- (a) 5 minutes
- (b) 7 minutes
- (c) 9 minutes
- (d) 11 minutes
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