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Questions and Answers
What happens to the speed of light when it passes from air into glass?
What is the angle of refraction if a light ray is incident perpendicular to the surface of a medium?
In which medium does light travel fastest?
What is the phenomenon where light bends as it passes from one medium to another?
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What is the angle of refraction if a light ray is incident at an angle of 45 degrees to the surface of a medium with a refractive index of 1.5?
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In which of the following mediums does light travel slowest?
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Study Notes
Refraction of Light
- When light passes from air into glass, its speed decreases due to the increased density of the medium.
- When a light ray is incident perpendicular to the surface of a medium, the angle of refraction is zero, meaning the light continues straight without bending.
- Light travels fastest in a vacuum, where there is no medium to slow it down.
- The phenomenon where light bends as it passes from one medium to another is called refraction.
- If a light ray is incident at an angle of 45 degrees to the surface of a medium with a refractive index of 1.5, the angle of refraction can be calculated using Snell's law.
- Light travels slowest in the densest medium, such as diamond, where the speed of light is approximately 124,000 km/s.
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Description
Test your knowledge about the refraction of light with this quiz. Explore questions about the speed of light when passing from air into glass, the angle of refraction for a light ray incident perpendicular to a medium's surface, and the medium in which light travels the fastest.
