JEE Main Physics question

PhysicsMechanical Properties of SolidsJEE Main

Two wires of equal lengths are made of the same material. Wire has a diameter that is twice that of wire . If identical weights are suspended from the ends of these wires, the increase in length is [EAMCET 1983, MP PMT 1990, MP PET 1995]

Answer: (D)

Solution

. Since , , i.e. one-fourth for as for .

Question ID VK-155081