Class 10 / Science
Class 10 Science Human Eye and Colourful World Worksheet
Practice eye structure, vision defects, lens correction, dispersion, atmospheric refraction, and scattering.
advanced45 minutesAnswer key included
Learning objective
Practise eye structure, accommodation, defects of vision, lens correction, dispersion, scattering, and atmospheric refraction.
Questions
- Name the part of the eye where image is formed.
- What is accommodation?
- What is myopia?
- Which lens corrects myopia?
- What is hypermetropia?
- Which lens corrects hypermetropia?
- What is dispersion of light?
- Why does the sky appear blue?
- Why does the sun appear reddish at sunrise and sunset?
- What is atmospheric refraction?
Answer key
Show suggested answers
- The image is formed on the retina.
- Accommodation is the ability of the eye lens to adjust its focal length to focus on near and distant objects.
- Myopia is a defect in which distant objects cannot be seen clearly.
- Myopia is corrected using a concave lens.
- Hypermetropia is a defect in which nearby objects cannot be seen clearly.
- Hypermetropia is corrected using a convex lens.
- Dispersion is the splitting of white light into its component colours.
- The sky appears blue because blue light has shorter wavelength and is scattered more strongly by particles in the atmosphere.
- At sunrise and sunset, sunlight travels a longer path through the atmosphere. Most shorter wavelengths scatter away, so red light reaches our eyes.
- Atmospheric refraction is the bending of light as it passes through layers of air with different densities.
How to use this worksheet
Students can solve the questions independently first, then review errors with a parent or teacher. Teachers can use it as a short class activity, homework sheet, or revision check.
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