A) 0.4
B) 0.6
C) 0.2
D) 0.5
Correct Answer: C
Solution :
\[\frac{Q}{t}=\frac{KA(\Delta \theta )}{l}\]Þ \[50=\frac{5\times 20\ K}{0.4}\Rightarrow K=\frac{1}{5}=0.2\]You need to login to perform this action.
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