Sneel's glass of water: http://commons.wikimedia.org/wiki/File:Snell_water_glass The image to the left shows several different optical effects, including reflection, refraction, and image formation. Through how many different media does the light from the steel rod travel before it enters your eye? Define diffuse reflection, and tell what its role is in human vision. Define speculator reflection and point out an example of speculator reflection in the graphic. In what ways are the image of the rod distorted by the water, the air, and the curved surface of the glass? In terms of Snell's law, explain why. Is the distortion of the image the same in the vertical direction as in the horizontal direction? Explain why in terms of the curvature of the glass

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Light from the steel rod travels through three different media before entering the eye 1 air 2 water inside the glass and 3 the glass material itself ... View the full answer