TS EAMCET Engineering 12 May 2023 Shift 2 Solved Paper

A rod of length ' L ' and negligible mass is suspended by two identical strings AB and CD as shown in the figure. A mass ' M ' is suspended from point ' C ' which is at a distance ' x ' from B. If the frequency of the first harmonic of AB is equal to the frequency of the second harmonic of CD, then the value of ' x ' is