Light - Reflection and Refraction
CBSE · Class 10 · Science
Complete topic list for Light - Reflection and Refraction in CBSE Class 10 Science. Key concepts, sub-topics, and what to focus on for board exams.
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Nature of Light and Reflection
- Light travels in straight lines in a homogeneous medium
- Objects become visible when light reflects from them and enters our eyes
- Highly polished surfaces like mirrors reflect most of the light falling on them
Spherical Mirrors
- Concave mirror: reflecting surface curves inward toward center of sphere
- Convex mirror: reflecting surface curves outward away from center of sphere
- Key terms: Pole (P), Center of curvature (C), Principal axis, Principal focus (F), Focal length (f)
Image Formation by Spherical Mirrors
- Concave mirror can form both real and virtual images depending on object position
- Convex mirror always forms virtual, erect, and diminished images
- Real images can be obtained on screen; virtual images cannot
Refraction of Light
- Refraction occurs when light passes obliquely from one transparent medium to another
- Light bends toward normal when going from rarer to denser medium
- Light bends away from normal when going from denser to rarer medium
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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