Answer:
Answer is given in the image
This equation relates the frequency of vibration to the dimensions and properties of the reed. To find the dimensions of the reed, you can measure the length (L), tension (T), and mass per unit length (μ) of the reed, and then solve for the fundamental frequency (f). Keep in mind that reed dimensions can vary, so you might need additional information about the reed's properties or consider using experimental data to determine the exact dimensions.
I hope my answer helps you.