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INTRODUCTORY TEXT TO THE LESSON The E-lesson presents the mechanism of the rainbow, based on the dispersion of light after it is refracted inside the drops of water after rainfall, and the effect on the human eye.
The learning objective:
- To study the mechanism of the rainbow.
- To understand the full effect obtained when the incident rays enter the human eye at a 40-42 degree angle.
- To understand the number of colours depends on each of their wavelengths and indexes of refraction.