Transmission Of Heat Question 281
Question: The length of the two rods made up of the same metal and having the same area of cross-section are 0.6 m and 0.8 m respectively. The temperature between the ends of first rod is $ 90^{o}C $ and $ 60^{o}C $ and that for the other rod is 150 and $ 110^{o}C $ . For which rod the rate of conduction will be greater
Options:
A) First
B) Second
C) Same for both
D) None of the above
Show Answer
Answer:
Correct Answer: C
Solution:
$ \frac{Q _{1}}{t}=\frac{KA(90-60)}{0.6}=50\ KA $ and $ \frac{Q _{2}}{t}=\frac{KA(150-110)}{0.8}=50\ KA $
BETA
