A. 0.280kg
B. 0.400kg
C. 0.613kg
D. 0.800kg
Correct Answer: Option D
Explanation
m = (0.7×40)/35
=0.8kg
![A metal rod of length 100cm is heated through 100°C, calculate the change in length of the rod [linear expansivity of the material of the rod is 3 x 10^-6K-1]](https://erudites.ng/wp-content/plugins/contextual-related-posts/default.png "A metal rod of length 100cm is heated through 100°C, calculate the change in length of the rod [linear expansivity of the material of the rod is 3 x 10^-6K-1]")
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