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Coefficient of linear expansion of brass...

Coefficient of linear expansion of brass and steel rods are `alpha_(1)` and `alpha_(2)`. Length of brass and steel rods are `l_(1)` and `l_(2)` respectively. If `(l_(2) - l_(1))` is maintained same at all temperature, which one of the following relations holds good?

A

`alpha_1l_2=alpha_2l_1`

B

`alpha_1 l_2^2=alpha_2l_1^2`

C

`alpha_1^2l_1=alpha_2^2 l_2`

D

`alpha_1l_1=alpha_2l_2`

Text Solution

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The correct Answer is:
D
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