Properties Of Solids And Liquids Question 455
Question: A body cools in a surrounding which is at a constant temperature of . Assume that it obeys Newton’s law of cooling. Its temperature is plotted against time t. Tangents are drawn to the curve at the points and . These tangents meet the time axis at angle of and , as shown, then
Options:
A)
B)
C)
D)
Show Answer
Answer:
Correct Answer: B
Solution:
[b] For 0-t plot, rate of cooling