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Two rods of length l(1) and l(2) are mad...

Two rods of length `l_(1)` and `l_(2)` are made of material whose coefficient of linear expansion are `alpha_(1)` and `alpha_(2)` , respectively. The difference between their lengths will be independent of temperatiure if `l_(1)//l_(2)` is to

A

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

B

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

C

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

D

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

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PHYSICS GALAXY - ASHISH ARORA-HEAT AND THERMAL EXPANSION-NUMERICAL MCQs SINGLE OPTIONS CORRECT
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