CAPE Physics Unit 1 · 2001 · Paper 2 · Question 2(a)

In a ripple tank experiment to measure wave speed, frequency was varied and wavelength measured. Table 2 shows the results. Wavelength was measured with a ruler graduated in mm.

Outline ONE method by which the wavelength of the waves generated in the ripple tank could be measured accurately.

This question uses a figure or table from the paper — you'll see it when you practise.