Heat TransferEasy
Question
Temperatures of two hot bodies β1 and β2 are 100oc and 800 c respectively. The temperature of surrounding is 400 c at t = 0, the ratio of rates of cooling of the two bodies (liquid) R1 : R2 will be
(Use Newton′s law of cooling )
(Use Newton′s law of cooling )
Options
A.3 : 2
B.5 : 4
C.2 : 1
D.4 : 5
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