A material has an index of refraction of 1.92 for light from a 560 nm source. What is the speed of light for this wavelength within the material? (c = 3.00 * 10⁸ m/s) A) 2.19 *10⁸ m/s B) 4.68*10⁸ m/s C) 1.56 * 10⁸ m/s D) 1.92 * 10⁸ m/s

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Quizplus · Accepted Answer

The speed of light in a material is given by v = c/n, where c is the speed of light in vacuum and n is the index of refraction. For this material, v = 3.00 x 10^8 m/s / 1.92 = 1.56 x 10^8 m/s.

A Material Has an Index of Refraction of 1