Diffraction of water waves increases if the gap is narrower or the wavelength is longer.
Each diffracted wavefront has breaks either side of the centre.Waves diffracted by adjacent sections of the gap are out of phase with each other and interfere and cancel each other out in certain directions.Diffraction does not alter the wavelength, speed or frequency of the waves.
Each diffracted wavefront has breaks either side of the centre.Waves diffracted by adjacent sections of the gap are out of phase with each other and interfere and cancel each other out in certain directions.Diffraction does not alter the wavelength, speed or frequency of the waves.