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Questions and Answers
What is the purpose of using rays in optics?
What is the purpose of using rays in optics?
- To model the propagation of light through an optical system (correct)
- To analyze wavefronts of actual light
- To compute refractive index changes
- To describe wave phenomena such as diffraction
In which circumstances can interference be modeled using the ray model?
In which circumstances can interference be modeled using the ray model?
- In all circumstances by adjusting the refractive index
- In all circumstances by altering the light's wavelength
- In homogeneous media by changing the wavefronts
- In limited circumstances by adding phase to the ray model (correct)
What happens to light rays in homogeneous media?
What happens to light rays in homogeneous media?
- They curve in a medium with changing refractive index
- They bend at interfaces
- They become parallel to wavefronts
- They are straight (correct)
What does a light ray represent?
What does a light ray represent?
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When does ray optics fail to describe phenomena like diffraction?
When does ray optics fail to describe phenomena like diffraction?
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