Transcription of Chapter Nine RAY OPTICS AND OPTICAL …
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Chapter Nine RAY OPTICS AND OPTICAL …
Chapter NineRAY OPTICSAND INTRODUCTIONN ature has endowed the human eye (retina) with the sensitivity to detectelectromagnetic waves within a small range of the electromagneticspectrum. Electromagnetic radiation belonging to this region of thespectrum (wavelength of about 400 nm to 750 nm) is called light. It ismainly through light and the sense of vision that we know and interpretthe world around are two things that we can intuitively mention about light fromcommon experience. First, that it travels with enormous speed and second,that it travels in a straight line.
Chapter Nine RAY OPTICS AND OPTICAL INSTRUMENTS 9.1 INTRODUCTION Nature has endowed the human eye (retina) with the sensitivity to detect electromagnetic waves within a small range of the electromagnetic
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