Transmission Of Heat Question 83
Question: A body of length 1m having cross sectional area 0.75m2 has heat flow through it at the rate of 6000 Joule/sec. Then find the temperature difference if $ K=200J{{m}^{-1}}{{K}^{-1}} $
[CPMT 2001]
Options:
A) 20°C
B) 40°C
C) 80°C
D) 100°C
Show Answer
Answer:
Correct Answer: B
Solution:
$ \frac{Q}{t}=\frac{KA\Delta \theta }{l} $
Therefore $ 6000=\frac{200\times 0.75\times \Delta \theta }{1} $ \ $ \Delta \theta =\frac{6000\times 1}{200\times 0.75}=40{}^\circ C $
BETA
