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Two indentical recrangular strips. One o...

Two indentical recrangular strips. One of copper and the other of steel, are rivetted together to from o bimetallic strip `(alpha_copper gtalpha_steel)`. On hearing. This strip will

A

remain straight

B

bend wih copper on conbex side

C

bend with steel on conbex side

D

get twisted.

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