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

B

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

C

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

D

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

Text Solution

Verified by Experts

The correct Answer is:
D
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