The Figure Shows the Path of a Ray of Light

question 16

Multiple Choice

The figure shows the path of a ray of light as it travels through air and crosses a boundary into water. The index of refraction of water for this light is 1.33.
-What is the speed of this ray of light as it travels through the water?

• A)1.54 × 10⁸ m/s
• B)2.26 × 10⁸ m/s
• C)2.86 × 10⁸ m/s
• D)3.99 × 10⁸ m/s
• E)4.43 × 10⁹ m/s

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