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Published online by Cambridge University Press: 21 July 2020
Chapter 2:explores the nature of light and the much debated question – should we regard light as an electromagnetic wave (including as a current though a conducting material) or as a particle?The key lies in the fact that (usually) light can be regarded as transmitted as a wave and (usually) light can be regarded as detected as a particle.We explore the implications and conclude that the answer lies in the specific question being asked!
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