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A meter scale made up of steel read accu...

A meter scale made up of steel read accurately at 20°c. In a sensitive experiment , distances accurate upto 0.055mm in 1m are required. Coefficient of linear expansion of steel is `11 xx 10^(-6) //^(@) C`. The range of temperature in which the experiment can be performed with this meter scale is given by a `xx 3^(@) C` to `n xx 5^(@) C`. Find n.

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