![]() Smaller the length of opening higher will be the diffraction effect. The diffractive effect seen in a set up depends on the length of the opening of the slit. A good example of this is the diffraction we see is the blue colour of light We will work here with light waves, however those concepts are equally applicable to different types of waves (for example, sound waves). Ultimately, however, his primary passion was still practical optics he once wrote that 'In all my experiments I could, owing to lack of time, pay attention to only those matters. Goals: In this virtual lab you will learn concepts related to the phenomena of diffraction of waves. This phenomenon can also take place when light is bent around particles that are on the same order of magnitude as the wavelength of the light. Fraunhofer was the first who used a diffraction grating to obtain line spectra and the first who measured the wavelengths of spectral lines with a diffraction grating. ![]() Both Interference and Diffraction are closely related to each other. The extent of bending depends upon the diameter of the slit. In Fraunhofer diffraction, the complex wave amplitude downstream of the aperture is computed using the Fraunhofer approximation. ![]() Diffraction of light occurs due to the bending of light at the corners of the opening.ĭiffraction is the phenomenon by which light bends while passing through the edge of a material or through a slit opening. As monochromatic light is an EM wave which has a single wavelength due to this behavior it is easy to trace the diffraction pattern produced by it. Hint: In Fraunhofer diffraction, monochromatic light is used as a source of light which is placed behind the slit in the setup. ![]()
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