If the speed of light in air is represented by e and the speed in a medium is u, then the refractive index of the medium can be calculated using the formula_______.

If the speed of light in air is represented by e and the speed in a me

1.	If the speed of light in air is represented by e and the speed in a medium is u, then the refractive index of the medium can be calculated using the formula_______.
A.	v/c
B.	c/v
C.	c/(2.v)
D.	(c-v)/c
Answer» C. c/(2.v)

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If the speed of light in air is represented by e and the speed in a medium is u, then the refractive index of the medium can be calculated using the formula_______.

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