A series of plane wavefronts of a water wave in a ripple tank are traveling towards a gap of width w w\,w in a barrier.
Which of the following changes will increase the amount of diffraction (causing the wave to spread out more) after passing through the gap?
Increasing the width of the gap, www.
Increasing the frequency of the wave source.
Decreasing the depth of the water in the ripple tank.
Increasing the wavelength of the waves.
237 exam-style questions on CIE IGCSE Physics General properties of waves, covering General properties of waves. Each one has a worked solution and a mark scheme showing where the marks go.