Questions
By what temperature a rod should be heated so that its length becomes 2lo if its initial length is l0. Coefficient of linear expansion is α in that temperature range
detailed solution
Correct option is A
dll dθ=α ⇒∫0△θ1.dθ = 1α∫l02l01ldl ⇒△θ=ln 2αTalk to our academic expert!
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