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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_(1)l_(1) = alpha_(2)l_(2)`

B

`alpha_(1)l_(2) = alpha_(2)l_(1)`

C

`alpha_(1)^(2) l_(2) = alpha_(2)^(2)l_(1)`

D

`alpha_(1) l_(2)^(2) = alpha_(2) l_(1)^(2)`

Text Solution

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The correct Answer is:
a
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