A metal metre scale gives correct measurement at 0^(0)C.is generally used at a temperature of 40^(@)C. The correction to be made for every metre is (alpha = 10^(-6) //1^(0) C )

A metal metre scale gives correct measurement at 0^(0)C.is generally u

1.	A metal metre scale gives correct measurement at 0^(0)C.is generally used at a temperature of 40^(@)C. The correction to be made for every metre is (alpha = 10^(-6) //1^(0) C )
Answer» `4 xx 10^(-5)` m `4 xx 10^(-5)` m to be added `4 xx 10^(-5)` m MUST be deducted None of the above Answer :B