If the ratio of lengths, radii and Young.s modulus of the steel and brass rods in the figure are a, b,c respectively, find the ratio of increase in their lengths ?

If the ratio of lengths, radii and Young.s modulus of the steel and br

1.	If the ratio of lengths, radii and Young.s modulus of the steel and brass rods in the figure are a, b,c respectively, find the ratio of increase in their lengths ?
Answer» Solution :`Y=(F)/(A),(L)/(e) rArr e=(F,L)/(AY),e=(F.L)/(pi r^(2)Y)` `rArr (e_(S))/(e_(B))=(3M)/(2M),((a)/(1)) ((1)/(b^(2)))((1)/(c)), (e_(S))/(e_(B))=(3a)/(2b^(2)c)`