The figure shows the light intensity on a screen behind a single slit. The wavelength of the light is 510 nm and the screen is 1.3 m behind the slit. What is the width (in mm ) of the slit? Express your answer in millimeters to two significant figures.

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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.