From the diagram above, if the velocity of the wave is 240 ms\(^{−1}\), the frequency of the first overtone is
Attached Figure / Diagram
Verified Correct Answer: .
Step-by-Step Mathematical Solution
Length L= 15 m
Wavelength λ = \(\dfrac{2L}{3}\) = 10m
Source: WAEC / JAMB / NECO Classroom Archive (Record #78278)