A bimetallic strip is formed out of two identical strips one of copper and the other of brass. The co-efficients of linear expansion of the two metals
A bimetallic strip is formed out of two identical strips one of copper and the other of brass. The co-efficients of linear expansion of the two metals are `alpha_(C)` and `alpha_(B)`. On heating, the the strip bends to form an are of radius of curvature `R`. Then `R` is
A. Proportional to `DeltaT`
B. Inversely proportional to `DeltaT`
C. Proportional to `|alpha_(B) - alpha_(C)|`
D. Inversely proportional to `|alpha_(B) - alpha_(C)|`
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Correct Answer - B::D
Radius of curvature `R = (d)/((alpha_(1) - alpha_(2))DeltaT)`
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