alleryMaxwell found the speed of electromagnetic waves matched the speed of light. He concluded light is:
AAn electromagnetic wave
BA stream of corpuscles
CA pressure sound wave
DA slow heat current
Answer & Solution
Correct answer: A. An electromagnetic wave
1. Maxwell's equations predicted waves of a certain speed.
2. That speed matched the measured speed of light.
3. So light must be an electromagnetic wave.
_Source: syllabus Physics Part II, Chapter 10, Wave Optics._
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