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The initial lengths of two rods A and B ...

The initial lengths of two rods `A` and `B` are in the ratio `3:5` and coefficients of linear expansion are in the ration `5:3`. If the rods are heated from `34^(@)C` to `65^(@)C`, the raito of their expansion will be

A

`1:1`

B

`3:5`

C

`1:2`

D

`2:3`

Text Solution

Verified by Experts

The correct Answer is:
A
`Deltal=l_(1)alphaDeltatimplies(Deltal_(1))/(Deltal_(2))=(l_(1))/(l_(2))xx(alpha_(1))/(alpha_(2))`
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