1. (a) An aluminium measuring rod which is correct at 5∘C , measures a certain distance as 88.42 cm at 35∘C . Determine the error in measuring the distance due to the expansion of the rod.
2. (b) If this aluminium rod measures a length of steel as 88.42 cm at 35∘C , what is the correct length of the steel at 35∘C ?