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Thermal Expansion of Solids

When a bimeta...

Question

When a bimetallic strip is heated, it-

A

Does not bend at all

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B

Gets twisted in the form of an helix

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C

Bend in the form of an arc with the more expandable metal outside

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D

Bends in the form of an arc with the more expandable metal inside

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Solution

The correct option is C
Bend in the form of an arc with the more expandable metal outside

A bimetallic strip on being heated bends in the form of an arc with more expandable metal (A) outside, as shown in the figure below.

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Similar questions

Q. The bimetallic strip made up of aluminium and copper, when heated bends in the direction shown below. Which metal expands more when the two are heated at the same temperature?

Q. A bimetallic strip is made of metals M₁ and M₂. On cooling through the same temperature, M₁ contrast more than M₂. When the strip is heated, it will

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Q. Two Straight metallic strips each of thickness t and length l are rivetted together. Their coefficients of linear expansions are

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