Class 10 Science Chapter 9 Light – Reflection and Refraction Notes [Handwritten Notes PDF]
Light – Reflection and Refraction is an important chapter in Class 10 Science that explains the behavior of light when it falls on different surfaces. It covers the laws of reflection, spherical mirrors, image formation, refraction through lenses, and applications like the human eye and optical instruments.
Here, we provide the Handwritten Notes PDF for Chapter 9, which includes detailed diagrams, ray diagrams, and short tricks to revise the concepts quickly.
For more Class 10 handwritten notes, visit Study Inertia.
Table of Contents
Highlights of the Notes
- NCERT-based handwritten notes with neat ray diagrams.
- Clear explanation of laws of reflection and refraction.
- Detailed mirror and lens ray diagrams included.
- Quick summary for last-minute revision.
- Important numerical concepts simplified.
Topics Covered
- Reflection of Light
- Laws of reflection
- Spherical mirrors – concave and convex
- Image formation by spherical mirrors
- Uses of concave and convex mirrors
- Mirror formula and magnification
- Refraction of Light
- Laws of refraction
- Refractive index
- Refraction through glass slab
- Spherical lenses – convex and concave
- Image formation by spherical lenses
- Lens formula and magnification
- Power of lens
- Applications
- Human eye (to be continued in the next chapter)
- Practical uses of mirrors and lenses
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FAQs
1. What are the laws of reflection? The angle of incidence equals the angle of reflection, and the incident ray, reflected ray, and normal lie in the same plane.
2. What is refractive index? It is the ratio of the speed of light in vacuum to the speed of light in the medium.
3. What is the mirror formula? 1/f = 1/v + 1/u, where f = focal length, v = image distance, and u = object distance.
4. What is the lens formula? 1/f = 1/v - 1/u.
5. What is the power of a lens? The power of a lens is the reciprocal of its focal length (in meters), measured in dioptres (D).