A meter rod made of steel is correct at 0^(@)C and other meter rod of same material is correct at 30^(@)C. If alpha=12xx10^(-6)//""^(@)C, the difference between their lengths at 20^(@)C is

A meter rod made of steel is correct at 0^(@)C and other meter rod of

1.	A meter rod made of steel is correct at 0^(@)C and other meter rod of same material is correct at 30^(@)C. If alpha=12xx10^(-6)//""^(@)C, the difference between their lengths at 20^(@)C is
Answer» `0.024` CM `0.012` cm `0.036` cm `0.048` cm Answer :C