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

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a body cools from 100°C to 70°℃ 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 min (b) 10 min
(c)
8 min
(d) 5 min
Transcribed Image Text:a body cools from 100°C to 70°℃ 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 min (b) 10 min (c) 8 min (d) 5 min
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