Light of wavelength λ = 580 nm is incident upon two thin slits that are separated by a distance d = 25 μm. The light hits a screen L = 1.5 m from the screen. It is observed that at a point y = 5.5 mm from the central maximum the intensity of the light is I = 55 W/m2. What is the intensity of the light at the two slits (I0) in watts per square meter?

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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.