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4 The length of a steel rod is 5 cm longer than that of a...

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4 The length of a steel rod is 5 cm longer than that of a brass rod If this difference in their lengths is to remain the same at all temperatures then the length of brass rod will be coefficient of linear expansion for steel and brass are 12 10 6 C and 18 x 10 6 C respectively a 20 cm b 15 cm c 5 cm EMACET 2015 d 10 cm

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To solve this problem we need to ensure that the difference in lengths between the steel rod and the brass rod remains constant at all temperatures Let Ls be the initial length of the steel rod Lb be the initial length of the    See Answer
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