Practice Evanescent Wave (2.5) - Propagation of Light and Geometric Optics

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9 questions

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6 sample questions

Question 1.
What is an evanescent wave?
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Think about how light behaves at the boundary of two different media.
Question 2.
What happens during total internal reflection?
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Consider the relationship between the angle of incidence and the critical angle.
3Question 3.
What is an evanescent wave?
- A wave that propagates energy
- A non-propagating wave
- A sound wave
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Focus on how the wave behaves at the interface.
4Question 4.
True or False: Evanescent waves can carry energy away from the surface.
- True
- False
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Consider the nature of the wave.
Question 5.
Given that the refractive index of a medium is 1.33, calculate the critical angle when light passes to air (n=1.0).
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Use the relationship of refractive indices to solve for the critical angle.
Question 6.
Discuss how the concept of evanescent waves is crucial for the development of optical biosensors.
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Think about how light interacts with surrounding media to enable detection.

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