Question

A metal metre scale gives correct measurement at 0° C. It is generally used at a
temperature of 40° C. Find the correction to be made for every metre. (a = 10-/° C)
a) 4 x 10 m
b) 4 x 10^m to be added c) 4 x 10-m must be added d)none of the above
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Answer 1

Answer:

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Answer 2

Answer:

It is generally used at a temperature of 40°C. The correction to be made for every metre is (a = 10power-6/1°C)