Questions
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 11×10-6/°C and 19×10-6/°C respectively).
detailed solution
Correct option is C
If ls be the reading of the scale at 400C, then its true reading = If lb be the length of brass tube at 00C, then its length at 400C = +Talk to our academic expert!
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