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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
`As alpha_(Al) gt alpha_("steel")`
aluminium will expand more. So, it should have larger radius of curvature. Hence, aluminium will be on convex side and Steel will be bend on concave side.
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