two iron rods have their length in the ratio 5:3 and diameters in the ratio 2:1 then the rods are - Physics - Mechanical Properties Of Solids

Question

two iron rods have their length in the ratio 5:3 and diameters in
the ratio 2:1 then the rods are heated from 30 to 100 the ratio of
their linear expansions is ​

Sayantan · Accepted Answer

Dear Student,

Increase in length due to linear expansion
l'=αL∆T  where, α=co-efficient of linear expansionwe have, L1L2=53  so let, L1=5L and L2=3L∆l1∆l2=α15L∆Tα23L∆T⇒α15α23
Regards

two iron rods have their length in the ratio 5:3 and diameters in the ratio 2:1 then the rods are heated from 30 to 100 the ratio of their linear expansions is ​

two iron rods have their length in the ratio 5:3 and diameters in the ratio 2:1 then the rods are heated from 30 to 100 the ratio of their linear expansions is