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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 radius

a. t(Δt)/(α12)

b. t(Δt)/(α21)

c. t(α12)Δt

d. t(α21)Δt

Abc , 10 Years ago
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anser 1 Answers
Abhishek Kumar

Last Activity: 10 Years ago

Take length of radius same (neglect t here).
Use \theta = l/r
Use l values for the two as r=R for both.

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