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Unit: The human eye and the colourful world

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The human eye

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Parts of the human eye - features and functionsGet 5 of 7 questions to level up!
Parts of the human eye - labellingGet 3 of 4 questions to level up!

Power of accommodation

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Human eye: accommodation and near point
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Power of accommodationGet 3 of 4 questions to level up!

Defects of vision and correction

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Practice

Defects of vision - characteristics and symptomsGet 5 of 7 questions to level up!
Defects of vision - causes and correctionsGet 5 of 7 questions to level up!

Defects of vision and correction numerical

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Dispersion of light

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Dispersion
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Dispersion of light - definition and characteristicsGet 3 of 4 questions to level up!

Dispersion of light in prism

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RainbowsGet 3 of 4 questions to level up!

Quiz

Level up on the above skills and collect up to 560 Mastery points

Atmospheric refraction

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Scattering of light and Tyndall effect

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Summary

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Unit test

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About this unit

What's inside our eyes? How do they work? Why do some people wear spectacles? Why do the stars twinkle? In this chapter, we will use the rules of refraction to explore the working of our eyes and their defects. We will learn how dispersion creates rainbows and how scattering creates the blue sky.