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Please give me solution for the question in the image

Please give me solution for the question in the image

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Grade:11

1 Answers

Adarsh
768 Points
4 years ago
let the new coeficient of linear expansion be k.α 
let the temp is increased and change in temp. be T 
sum of individual expansion of two rod = expansion of combined rod ..
lαT(1+4)=3.x.l.T.α => x= 5/3  so new coefficient of linear expansion is 5/3α.

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