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15 May, 01:41

If the index of refraction of a medium is 1.4 determine the speed of light in that Medium

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Answers (2)
  1. 15 May, 03:24
    0
    Speed of light in air (which has an index of refraction of 1) is 3 * 10^8 m/s. So divide the speed of light by the index of refraction of the new medium to obtain the speed of light in that [ medium. ]
  2. 15 May, 05:26
    0
    The speed of light in any medium is

    (speed of light in vacuum)

    divided by

    (index of refraction of the medium).

    For the medium you're describing, it's

    c / 1.4 = about 0.714 c = 214,137,470 m/s.
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