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Two straight metallic stripes each of thickness t and length l are riveted together.Their coefficients of linear expansion are α1 and α2.If they are heated through a temperature Δt,the bimetallic stripe will bend to form an arc of radiusa. t(Δt)/(α1+α2)b. t(Δt)/(α2-α1)c. t(α1+α2)Δtd. t(α2-α1)Δt

Menka Malguri , 13 Years ago
Grade 12th Pass
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