One day, after pulling down your window shade, you notice that sunlight is passing through a pinhole in the shade and making a small patch of light on the far wall. Having recently studied optics in your physics class, you're not too surprised to see that the patch of light seems to be a circular diffraction pattern. It appears that the central maximum is about 3 cm across, and you estimate that the distance from the window shade to the wall is about 5 m. Part A Estimate the average wavelength of the sunlight (in nm). 350 nm 450 nm 550 nm 650 nm 750 nm Submit Part B Request Answer Estimate the diameter of the pinhole (in mm).

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Q: One day, after pulling down your window shade, you notice that sunlight is passing through a pinhole…

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Q: One day, after pulling down your window shade, you notice that sunlight is passing through a pinhole…

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Q: Irina finds an unlabeled box of fine needles, and wants to determine how thick they are. A standard…

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Q: One way to measure the width of a narrow object is to examine its diffraction pattern. When laser…

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Q: The Rayleigh criterion provides a convenient way to describe the theoretical resolution (e.g. an…

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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.