Astudent uses a ripple tank to calculate the wavelength of a water wave. The screen below the ripple tank is 100 cm long. They count 8 waves on the screen. What is the wavelength of a wave?

## Step1: In the problem given, we can draw the inference that the screen represents a "wave train", which is a series of waves grouped together. Here, an 8-wave train encompasses a length of 100 cm.## Step2:The wavelength of a wave can be calculated by dividing the total length of the wave train by the number of waves it contains. This essentially finds the length of one single wave - the wavelength.### Formula to be used: Where, \\ = Wavelength \\ = The length of the wave train\\ = The number of waves## Step3: Substitute the known values and into the formula