Light of velocity 3 x 108ms-1 is incident on a material of reflective of index...

JAMB 1997

Light of velocity 3 x 10⁸ms^-1 is incident on a material of reflective of index n. If the velocity of light is reduced to 2.4 x 10⁸ms^-1 in the material, what is n?

A. 2.33
B. 2.25
C. 1.33
D. 1.25

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Correct Answer: Option D

Explanation

n = \(\frac{3 \times\ 10^8}{2.4 \times\ 10^8}\)

n = 1.25

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Light of velocity 3 x 108ms-1 is incident on a material of reflective of index...

Correct Answer: Option D

Explanation

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