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11.Find the increase in length of the iron rod at 20'C if the length of the iron rod at 0 Cis05ma 0.00001k']1) 0.0001m2) 0.01 m3) 0.1 m4) 0.02 m

Answer»

Increase = l*a*temperature change= 0.5*0.00001*20= 0.0001m

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