| Column $-I$ | Column $-II$ |
| $(a)$ Stress $\propto $ Strain | $(i)$ $M^1\,L^{-1}\,T^{-2}$ |
| $(b)$ Dimensional formula for compressibility | $(ii)$ $M^{-1}\,L^{1}\,T^{-2}$ |
| $(iii)$ Poisson’s ratio | |
| $(iv)$ Hooke’s law |
$(A)$ $P$ has more tensile strength than $Q$
$(B)$ $P$ is more ductile than $Q$
$(C)$ $P$ is more brittle than $Q$
$(D)$ The Young's modulus of $P$ is more than that of $Q$
