Q. Ratio among linear expansion coefficient $(\alpha),$ areal expansion coefficient $(\beta)$ and volume expansion coefficient $(\gamma)$ is
A) $1\ :2\ :3$
B) $3\ :2\ :1$
C) $4\ :3\ :2$
D) None of these
Explanation
(a) $As\ \alpha = \frac{\beta}{2} = \frac{\gamma}{3} \Rightarrow \alpha\ :\beta\ :\gamma = 1\ :2\ :3$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.