A fish in an aquarium approaches the left wall at a rate of 3 m/s and observes a fly approaching it at 8 m/s. If the refractive index of water is 4/3, find the actual velocity of the fly.Explain with steps..pls help!!!:(

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Is it 4 m/s?

actual velocity of fly=3.75m/s

We know that, Speed of light in air / Speed of light in water = 4/3 Or, 3 * 10^8 / x = 4/3 Or, x = 2.25 * 10^8 Now, 2.25*10^8 = 3 So, 3*10^8 = 3/(2.25 * 10^8) * 3*10^8 = 9/2.25 = 4

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