Questions
Two different wires having length and and respective temperature coefficient of linear expansion and ,are joined end-to-end. Then the effective temperature coefficient of linear expansion is:
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Correct option is D
Thermal expansion for effective wireLeffαeffΔθ=L1α1Δθ+L2α2Δθ⇒αeff=L1α1+L2α2L1+L2Similar Questions
The coefficient of linear expansion of brass and steel are and . If we take a brass rod of length and steel rod of length at 0oC, their difference in length will remain the same at all temperatures if
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