Two steel wires of lenths `1m` and `2m` have diameters `1mm` and `2mm` respectively. If they are stretched by forces of `40N` and `80N` respectively, the ratio of their elongations is

Two steel wires of lengths 1 m and 2 m have diameters 1 mm and 2mm respectively . If they are stretched by force of 40 N and 80 N respectively, find the ratio of their elongations.

Two wires of the same length but of difference materials have diameter of 1mm and 3mm respectively.IF both of them are stretched by the same force,then the elongation of the first wire becomes thrice that of the second. Compare their Young's modull.

Two wire of the same material and length stretched by the same force. If the ratio of the radii of the two wires is n : 1 then the ratio of their elongations is

Two pieces of wire, A and B of the same material have their lengths in the ratio 1:3 and their diameters are in the ratio 2:1 . If they are stretched by the same force, their elongations will be in the ratio

Two wires of the same material are stretched with the same force. Their diameters are 1.2 mm and 1.6mm, while their lengths are 90 cm and 60cm respectively. If the frequency of vibrations of first is 256 Hz, find that of the other.