WAEC - Physics (2023 - No. 2)
The diagram above illustrates a mode of vibration of a wire of length 125 cm. The speed of the waves along the wire is 120 ms-1. Use the diagram to answer questions 2 and 3. Determine the wavelength of the waves.
1.00m
0.75m
0.25m
0.50m
Paliwanag
Number of cycles, n = \(2\frac{1}{2} = \frac{5}{2}\)
Length = n位
位 = \(\frac{Length}{n}\) = \(\frac{125}{\frac{5}{2}}\)
Therefore, 位 = 50cm = 0.50m.