Difference Between Interference And Diffraction Class 12th. Diffraction fringes are not of the same width. The width of principle maxima is found to be 25 mmFind the wavelength of light used.
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The rapid changes cannot be seen by our eyes and almost a uniform illumination on the screen is observed. Class 12 Physics Wave Optics. All bright fringes are equally illuminated.
So the phase difference between two independent light sources changes after 10-8 second.
When the diffraction pattern is a screen placed at a distance of 2m. So we cannot use two independent sources to produce interference pattern. Interference fringes are of the same width. The fringe width in interference is generally constant.
