JEE Main 202116 MarchEvening Shift

Exam: JEE Main
Year: 2021
Date: 16 March
Shift: Evening Shift
Subject: Physics
Chapter: Thermal Properties of Matter

JEE Main 2021 · 16 March · Evening Shift · Physics · Thermal Properties of Matter

A bimetallic strip consists of metals A and B . It is mounted...

A bimetallic strip consists of metals $A$ and $B$ . It is mounted rigidly as shown. The metal $A$ has higher coefficient of expansion compared to that of metal $B$ . When the bimetallic strip is placed in a cold both, it will :

A bimetallic strip consists of metals A and B . It is mounted rigidly as shown. The metal A has higher coefficient of

Options

ABend towards the right
BNot bend but shrink
CNeither bend nor shrink
DBend towards the left

Correct answer

D. Bend towards the left

Step-by-step solution

${\alpha}_{A} > {\alpha}_{B}$

Length of both strips will decrease $\Delta{L}_{A} > \Delta{L}_{B}$

A bimetallic strip consists of metals A and B . It is mounted rigidly as shown. The metal A has higher coefficient of

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