A body takes T minutes to cool from 62 0 C to 61 0 C when the surrounding temperature is 30 0 C. The time taken by the body to cool from 46 0 C to 45.5 0 C is
Text Solution
Verified by ExpertsThe correct answer is:
A
According to Newton's Law of Cooling,
Rate of cooling 
(Temperature of body - Temperature of surroundings)
From 
to 
, average excess temperature 
From 
to 
, average excess temperature 
Since the temperature difference is smaller in the second case, the rate of cooling is slower, so more time is needed.
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
Hot water cools from to in the first 10 minutes and to in the next 10 minutes. The temperature o…
A bucket full of hot water cools from to in time , from to in time and from to in time , t…
Consider two hot bodies and which have temperatures and respectively at . The temperature of t…
Newton's law of cooling is a special case of
Equal masses of two liquids are filled in two similar calorimeters. The rate of cooling will
In Newton's experiment of cooling, the water equivalent of two similar calorimeters is 10 gm each. …