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If a Particular Substance Has a Refractive Index of 2

Question 139

Multiple Choice

If a particular substance has a refractive index of 2.25, how fast does light travel through it?

A) 5.33 x 10⁸ m/s
B) 1.33 x 10⁸ m/s
C) 1.78 x 10⁸ m/s
D) 1.23 x 10⁸ m/s

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