Column$-II$ is related to Column$-I$. Join them appropriately :

Column $-I$	Column $-II$
$(a)$ When temperature raised Young’s modulus of body	$(i)$ Zero
$(b)$ Young’s modulus for air	$(ii)$ Infinite
	$(iii)$ Decreases
	$(iv)$Increases

A composite rod made up of two rods $AB$ and $BC$ are joined at $B$ . The rods are of equal length at room temperature and have equal masses. The coefficient of linear expansion a of $AB$ is more than that of $BC$. The composite rod is suspended horizontal by means of a thread at $B$. When the rod is heated

A wire of area of cross-section $10^{-6}\,m^2$ is increased in length by $0.1\%$. The tension produced is $1000\, N$. The Young's modulus of wire is

What is the effect of change in temperature on the Young’s modulus ?

With rise in temperature, the Young's modulus of elasticity

The interatomic distance for a metal is $3 \times {10^{ - 10}}\,m$. If the interatomic force constant is $3.6 \times {10^{ - 9}}\,N/{{\buildrel _{\circ} \over {\mathrm{A}}}}$, then the Young's modulus in $N/{m^2}$ will be