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What must be the lengths of steel and co...

What must be the lengths of steel and copper rods at `0^(@)C` for the difference in their lengths to be 10 cm at any common temperature?
`(alpha_(steel)=1.2xx10^(-5).^(@)K^(-1)and alpha_("copper")=1.8xx10^(-5).^(@)K^(-1))`

A

14.17 cm, 9.17 cm

B

9.17 cm, 14.17 cm

C

28.34 cm, 18.34 cm

D

14.17 cm, 18.34 cm

Text Solution

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The correct Answer is:
A
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