Question

calculate the speed of light in water of refractive index 4/3.given speed of light in air =3×10^8.

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Answer 1

Answer:

◾️ refractive index = c/v

4/3 = 3x 108 / v

v = 9 x108 / 4

v = 2.25 x108

#hope it help uh.!

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Answer 2

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Given:

Refractive Index = 4 / 3

Speed of light in air = 3 * 10⁸ m/s

to find :Speed of light in water.

Formula:

refractive index of water = Speed of light in air / Speed of light in water

Solution:

4 / 3 = 3 * 10⁸ / Speed of light in water

Speed of light in water =  3 * 10⁸ * 3 / 4

Speed of light in water = 2.25 * 10⁸

Thus,

ANSWER:

Speed of light in water is 2.25 * 10⁸ m/s

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