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A bimetallic strip is formed out of two ...

A bimetallic strip is formed out of two identical strips one of copper and the other of brass. The coefficients of linear expansion of the strip goes up by `DeltaT`and the strip bends to from an arc 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|`

Text Solution

Verified by Experts

The correct Answer is:
B, D
The expression of radius of curvature `R` is
`R=(d)/((alpha_(1)-alpha_(2))Deltat)`
Thus, `Rprop(1)/(Deltat)` and `Rprop(1)/(|alpha_(B)-alpha_(C)|)`
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