The lengths and radii of two metal rods are in the ratio 3:2 and 2:3 respectively. When those two are heated from 0^(0)C to 100^(0)C, find the ratio of their linear expansions?

The lengths and radii of two metal rods are in the ratio 3:2 and 2:3 r

1.	The lengths and radii of two metal rods are in the ratio 3:2 and 2:3 respectively. When those two are heated from 0^(0)C to 100^(0)C, find the ratio of their linear expansions?
Answer» Solution :Expansion `Deltal=l alpha Delta t` `Deltal alpha l` [Both are STEEL RODS, so `alpha` is some] `(Deltal_(1))/(Deltal_(2))=(l_(1))/(l_(2))=(Deltal_(1))/(Deltal_(2))=(2)/(3)`