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Draw a neat and labelled ray diagram to show the formation of a primary rainbow.

Physics20232 marksDrawing

Draw: ray diagram showing the formation of a primary rainbow

Must show: spherical raindrop, incident sunlight ray, refraction and dispersion at entry, internal reflection at back surface, refraction at exit into viewer's eye, violet and red ray paths with angles

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Ray Optics and Optical Instruments

From ISC 2023 Specimen Physics Paper 1, question 7.