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upon the material properties of the medium and on the wavelength of the incident light. The frequency of the light does not change as it goes from medium to medium, but the wavelength must change since the velocity changes. The change of velocity of light in a trans- parent medium like glass leads to the bending of a ray of light. This bending is described by the Law of Refraction, n i sin ( θ i ) = n t sin ( θ t ). The subscripts i and t indicate the initial medium and the transmitted medium, respec- tively, and the angles are measured with re- spect to the normal to the boundary between the media. A common use for the bending of light by an
When light encounters a medium, the interfer- ence between the incident light and the light scattered by the medium leads to a wavefront that moves slower than the speed of light, c . The speed of light in the medium is given by v = c/n , where n is the index of refraction. The value of the index of refraction depends air to glass boundary is a lens. The imaging of an object is produced by a lens bending the incident light from an object to create an image. A simple equation relating the location of the object and the image and the focal length of the lens is, 1 /f = 1 /s o + 1 /s i , where s o is the distance from the object to the lens and s i is the distance from the image to the lens. The following questions refer to glass ob- jects with an index of refraction of 1.5 for 600 nm light and 1.6 for 400 nm light. A light ray propagating in vacuum contains both 600nm light and 400 nm light and is incident on top of a glass cube. Compare how the two types of light travel through the block.
scribner (eks662) – reflection refraction imaging HW – yeazell – (55745) 15 Explanation: The light with the smaller index of refrac- tion travels faster. 043 (part 2 of 6) 10.0 points What is the wavelength of the 600 nm light when it is in this glass cube?

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