What is speed of light in diamond of refractive index 2.4, if the velo – McqOptions

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1.	What is speed of light in diamond of refractive index 2.4, if the velocity of light in air is 3 × 108 m/s?
A.	1.75 × 108 m/s
B.	0.25 × 108 m/s
C.	1.25 × 108 m/s
D.	2.25 × 108 m/s
Answer» D. 2.25 × 108 m/s

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