Question

The length of a sonometer wire between two fixed ends is 110cm. Where the two bridges should be placed so as to divide the wire into three segments whose fundamental frequencies are in the ratio of 1:2:3?  

Answer 1

Let l₁, l₂ and l₃ be the length of the three parts of the wire and f₁, f₂ and f₃ be their respective frequencies. 

Since T and m are fixed quantities, and 2 are constant