Draw the variation of the mean light intensity (l) with respect to the angle of diffraction (teta) if i is due to interference of light of wavelength (lamda) using 2 slits.  It is known that each slit has a width of a(- 2 lamda) and the distance between the two slits is d(- 4 lamda).

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Diffraction of light

In physics, the term diffraction is defined as the bending of light around the corners of the obstacle. As a light ray passes by an aperture, it bends around the edges or through slits, it spreads out through a narrow opening. The diffracted light will produce fringes of bright and dark or colored bands which are labeled as a diffraction pattern.