alleryThe speed of light in water was shown to be less than in air by:
AFaraday
BFoucault
CDescartes
DFresnel
Answer & Solution
Correct answer: B. Foucault
1. The wave and corpuscular models disagreed on this point.
2. An experiment settled it in favour of the wave model.
3. Foucault carried out that experiment.
_Source: syllabus Physics Part II, Chapter 10, Wave Optics._
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