1.

A steel scale is correct at 0^(@)C. The length of a brass tube measured by it at 40^(@)C is 4.5m. The correct length of the tube at 0^(@)C is (Coefficients of linear expansion of steel and brass are 11 xx 10^(-6)//^(@) Cand 19 xx 10^(-6)//^(@)C respectively).

Answer»

4.001m
5.001m
4.499m
4.501m

ANSWER :C


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