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📚Master Light: Reflection & Refraction for RRB Group D 2025 | NCERT Science Chapter 9 in One Video!

Struggling with the Science section for your RRB Group D or Technician exam? This comprehensive one-shot video covers everything you need to know from the NCERT Class 10 Science chapter - Light: Reflection and Refraction. We break down complex concepts into simple, easy-to-understand lessons tailored for your railway exam preparation.

📚 In this video, you will learn:

Laws of Reflection: Understand the fundamental principles that govern how light bounces off surfaces .

Spherical Mirrors (Concave & Convex): Master key terms like Pole, Focus, and Radius of Curvature. Learn the mirror formula (1/v + 1/u = 1/f) and magnification with solved examples .

Image Formation: Analyze ray diagrams to predict the position, nature, and size of images formed by concave and convex mirrors .

Laws of Refraction & Refractive Index: Discover why light bends and how to calculate the extent of bending .

Spherical Lenses (Convex & Concave): Grasp the rules of image formation by lenses, the lens formula, and the power of a lens (in Dioptre) .

⏱️ VIDEO CHAPTERS:
0:00 - Introduction to Light
2:15 - Laws of Reflection & Plane Mirrors
8:40 - Spherical Mirrors - Key Terminology
15:50 - Image Formation by Concave Mirror
25:10 - Image Formation by Convex Mirror
30:05 - Mirror Formula & Magnification (with Numericals)
38:20 - Laws of Refraction & Refractive Index
45:00 refraction Through a Glass Slab
52:30 - Spherical Lenses & Image Formation
1:02:45 - Lens Formula, Magnification & Power (with Numericals)
1:12:00 - Top 10 MCQs for RRB Group D Exam

📝 RRB Group D Exam Relevance:
This chapter is a crucial part of the General Science syllabus for RRB Group D 2025. The exam includes 25 questions from General Science, and questions from this chapter are frequently asked from topics like mirror/lens formulae, nature of images, and laws of reflection/refraction . Strengthening this chapter can significantly boost your overall score.

🔗 Important Links:
📖 Download the FREE PDF Notes for this chapter here: [Link to your PDF]
✅ Attempt Free RRB Group D Mock Test: [Link to mock test]
📋 Complete RRB Group D 2025 Syllabus & Exam Pattern: [Link to syllabus video/blog]

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