Waves

Two uniform wires of same material are vibrating under the same tension. If the first overtone of first wire is equal to the \(2^{\text {nd }}\) overtone of \(2^{\text {nd }}\) wire and radius of the first wire is twice the radius of the \(2^{\text {nd }}\) wire then the ratio of length of first wire to \(2^{\text {nd }}\) wire is