A somoneter wire resonates with a given tuning fork forming standing waves with five antindoes between the two bridges when a mass of 9 kg is suspended from the wire. Resonates with the same tuning fork forming three antindoes for the same postions of the bridges. the value of M is

Options

A. 25 kg
B. 5 kg
C. 12.5 kg
D. 1/25 kg

Answer

A