The Human Eye and the Colourful World
Your child will journey from lenses into the eye itself and upward to the rainbow. This chapter usually offers about four to five marks, often defects of vision plus a scattering or prism question. Learners study the structure and working of the human eye, correct myopia, hypermetropia and presbyopia with suitable lenses, compare the eye with a camera, split white light through a prism, explain the rainbow, and show how scattering paints the blue sky, the red sunset and the path of light through the atmosphere. Three misconceptions appear. Students prescribe concave lenses for long sight. They
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