Practice Laws Of Refraction (4.3) - Refraction of Light at Plane Surfaces

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8 questions

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6 sample questions

Question 1.
Define the incident ray.
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Think about what happens when light first contacts the medium.
Question 2.
What is the normal in the context of refraction?
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Consider how this line relates to the incident ray.
3Question 3.
What does the first law of refraction state?
- The rays are parallel.
- The rays lie in the same plane.
- The rays never bend.
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Consider how the rays interact at the surface.
4Question 4.
True or False: The refractive index is dependent on the angle of incidence.
- True
- False
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Think about what the refractive index measures.
Question 5.
If light travels from air (n=1) into glass (n=1.5) at an angle of incidence of 30 degrees, find the angle of refraction.
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Rearranging Snell's law helps isolate sin r.
Question 6.
Discuss how the refractive index affects the design of eyeglasses.
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Think about how optical properties minimize thickness and maximize vision quality.

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