Physics-
General
Easy
Question
A body cools in a surrounding which is at a constant temperature of 
. Assume that of obeys Newton’s law of cooling. Its temperature 
is plotted against time 
. Tangents are drawn to the curve at the points 
and 
. These tangents meet the time axis at angles of 
and 
, as shown
The correct answer is:
For 
plot, rate of cooling 
slope of the curve
At 
where
constant
At 
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