CBSE · Class 10 · Science · Chapter 10

The Human Eye and the Colourful World

Explore the human eye, vision defects, corrective lenses and the colourful optical effects produced in nature.

8 lessons 45 min
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Lessons in this chapter

  1. 1The Human EyeA camera with muscles, nerves and a remarkably clever focusing system.
  2. 2Power of AccommodationYour eye changes focus faster than you can say ‘where did I put my glasses?’
  3. 3Defects of Vision and Their CorrectionWhen the eye misses the retina, the right lens helps light find its way home.
  4. 4Refraction of Light Through a PrismTwo tilted surfaces send one light ray away with a brand-new direction.
  5. 5Dispersion of White Light by a Glass PrismWhite light enters alone and leaves as a seven-colour team.
  6. 6Atmospheric RefractionThe moving atmosphere quietly shifts stars and borrows a few minutes of sunlight.
  7. 7Scattering of LightTiny particles redirect light and paint the sky without using a brush.
  8. 8Chapter Summary and PracticeEvery ray, lens, colour and sky effect returns for one final, connected view.
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