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A bimetallic strip is made of aluminium ...

A bimetallic strip is made of aluminium and steel `(alpha_(Al)gtalpha_(steel)`. On heating, the strip will

A

remain straight.

B

get twisted.

C

will bend with aluminium on concave side.

D

will bend with steel on concave side.

Text Solution

Verified by Experts

The correct Answer is:
D
Since `alpha_(Al) gt alpha_(steel)` aluminium strip will expand more (on convex side) than steel (on concave side) as shown in the figure:
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