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)/(α1+α2)
b. t(Δt)/(α2-α1)
c. t(α1+α2)Δt
d. t(α2-α1)Δt
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)/(α1+α2)
b. t(Δt)/(α2-α1)
c. t(α1+α2)Δt
d. t(α2-α1)Δt
Abc , 10 Years ago
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