what is the difference between refraction and diffraction
Difference Between Diffraction and Refraction. â¢ Diffraction is bending or spreading of waves around an obstacle, while refraction is bending of waves due to change of speed. â¢ Both diffraction and refraction are wavelength dependant.Hence, both can split white light in to its component wavelengths.ntensity of the fringes decreases as we move along either side of the central maxima. Refraction. When a wave passes from one medium to another at any angle except 90Â° and 0Â°, its line of travel changes at the interface due to the change in velocity of the wave. This is what we call refraction.