Question

THE SPEED OF LIGHT IN ETHANOL IS 2.21 * 10^8 M/S. WHAT IS ITS REFRACTIVE INDEX IF THE SPEED OF LIGHT IN AIR IS 3 * 10^8 M/S

Answer 1

Answer:1.36*10^8 m/s

Step-by-step explanation:

Answer:

1.36*10^8 m/s

Explanation:

refractive index = speed of light in air/ speed of light in ethanol

= 3 * 10^8 / 2.21 * 10^8 = 1.357* 10^8 m/s ≈ 1.36*10^8 m/s

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Answer 2

Answer:

1.357 m/s

Step-by-step explanation:

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