question_answer

A hot body, obeying Newton's law of cooling is cooling down from its peak value \[89{}^\circ C\] to an ambient temperature of \[39{}^\circ C\]. It takes 5 minutes in cooling down from \[89{}^\circ C\] to \[49{}^\circ C\]. How much time will it take to cool down from \[62{}^\circ C to 32{}^\circ C\](Given In 2 = 9.693, In 5 = 1.699)

A) 3.75 minutes

B) 8.6 minutes

C) 9.6 minutes

D) 6.5 minutes