Practice Light As An Electromagnetic Wave (2) - Propagation of Light and Geometric Optics

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6 sample questions

Question 1.
Define an electromagnetic wave.
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Think about the characteristics of light.
Question 2.
What are the components of the Fresnel equations?
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Recall what happens at an interface.
3Question 3.
What is the speed of light in a vacuum?
- 3 x 10^8 m/s
- 3 x 10^6 m/s
- 3 x 10^9 m/s
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It's a fundamental constant.
4Question 4.
True or False: Total Internal Reflection can occur when light travels from a rarer medium to a denser medium.
- True
- False
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Consider the direction of light movement.
Question 5.
Calculate the critical angle for light moving from glass (n=1.5) to air (n=1.0) and discuss its implications for TIR.
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Use your scientific calculator to find arcsin.
Question 6.
Discuss how evanescent waves might affect the efficiency of a light transmission system utilizing optical fibers.
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Consider how light behaves when it hits the edge of a medium.

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