Q. A bimetallic strip consists of metals $X$ and $Y$. It is mounted rigidly at the base as shown. The metal $X$ has a higher coefficient of expansion compared to that for metal $Y$. when bimetallic strip is placed in a cold bath
A) It will bend towards the right
B) It will bend towards the left
C) It will not bend but shrink
D) It will neither bend nor shrink
Explanation
(b) The metal X has a higher coefficient of expansion compared to that for metal Y so, on placing bimetallic strip in a cold bath, X will shrink more than $Y$. Hence, the strip will bend towards the left.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.