If the radius and length of a copper rod are both doubled, the rate of flow of heat along the rod increases

If the radius and length of a copper rod are both doubled, the rate of

1.	If the radius and length of a copper rod are both doubled, the rate of flow of heat along the rod increases
A.	4 times
B.	2 times
C.	\[\text{6}0{}^\circ \]
D.	16 times
Answer» C. \[\text{6}0{}^\circ \]

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If the radius and length of a copper rod are both doubled, the rate of flow of heat along the rod increases

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