The ratio of the linear expansivity of copper to that of iron is approximately 1.5. A specimen of iron and a specimen of copper expands by the same amount per unit rise in temperature. The ratio of their length is
Correct Answer: Option E
If α1 is the linear expansivity of copper
And α2 is the linear expansivity of iron
L1 —> length of copper
L2 —> length of iron
α1L1 = α2L2
L1/L2 = α2/α1
Since α1/α2 = 1.5
α2/α1 = 1/1.5
L1/L2 = 0.67
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His Name is Tiamiyu Abdulbazeet Olawale. He is a student at the University of Ilorin studying Electrical and Electronics Engineering. He likes to give the latest updates about Nigeria and international institutions as he aims at helping people to lay their hands on the right information.