When a light ray enters water from air, how is the refractive index of water relative to air related to the speed of light in the two media?

Subject: General Awareness | Topic: Science | Difficulty: MEDIUM

Options

1. (A) The refractive index of water relative to air is the difference of the speeds in air and water
2. (B) The refractive index of water relative to air is the ratio of the speed of light in water to the speed of light in air
3. (C) The refractive index of water relative to air is the sum of the speeds in air and water
4. (D) The refractive index of water relative to air is the ratio of the speed of light in air to the speed of light in water

Verified Answer

Option (D): The refractive index of water relative to air is the ratio of the speed of light in air to the speed of light in water

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