How did Fresnel explain optical rotation?
Difference in propagation speeds
Change in light frequency
Interaction with magnetic fields
Refraction through different media
Answer
Fresnel explained optical rotation as a difference in propagation speeds for the two directions of circular polarization. This understanding helped further the study of polarization and its effects on light.
Shedding Light on Augustin-Jean Fresnel: The Brilliant Mind Behind Modern Optics
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