A bimetallic strip is made of metals M 1 and M 2- On cooling through the same temperature- M 1 contrast more than M 2- When the strip is heated- it willa bend towards M 1b bend towards M 2c not bend at alld direction of bending cannot be predicted

(b) bend towards M2 Because M1 contracts more than M2 on cooling, M1 will also expand more than M2 nbsp;on heating. Hence, the strip will bend towards M2. ...

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Standard VIII

Physics

Thermal Expansion of Solids

A bimetallic ...

Question

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

(a) bend towards M₁
(b) bend towards M₂
(c) not bend at all
(d) direction of bending cannot be predicted

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Solution

(b) bend towards M₂
Because M₁ contracts more than M₂on cooling, M₁ will also expand more than M₂ on heating. Hence, the strip will bend towards M₂.

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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 (a) bend towards M1 (b) bend towards M2 (c) not bend at all (d) direction of bending cannot be predicted

(b) bend towards M2 Because M1 contracts more than M2 on cooling, M1 will also expand more than M2 on heating. Hence, the strip will bend towards M2.

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

(a) bend towards M₁
(b) bend towards M₂
(c) not bend at all
(d) direction of bending cannot be predicted

(b) bend towards M₂
Because M₁ contracts more than M₂on cooling, M₁ will also expand more than M₂ on heating. Hence, the strip will bend towards M₂.