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PhysicsRay Optics and Optical Instruments

Class 12PhysicsChapter 910 marksChallenging

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Physics · Class 12Ray Optics and Optical InstrumentsVideo coming soonRead the notes instead
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Reflection and Refraction, Total Internal Reflection, Lens Maker's Formula and the board questions built on them — roughly 10 marks of the paper.

What this chapter covers

  1. 1Reflection and Refraction
  2. 2Total Internal Reflection
  3. 3Lens Maker's Formula
  4. 4Prism and Dispersion
  5. 5Microscope and Telescope

These lessons are being recorded. The written notes for this chapter are free to download now.

Learning resources

In the notes

Topics covered

  1. 01Reflection and Refraction10:23
  2. 02Total Internal Reflection30:46
  3. 03Lens Maker's Formula17:53
  4. 04Prism and Dispersion31:58
  5. 05Microscope and Telescope13:28

After this chapter you can

  • Explain reflection and refraction without reading from the book
  • Present total internal reflection in the format the marking scheme rewards
  • Attempt every previous year question set on this chapter
Marks
10
PYQs
26
Video
1h 44m

Then do the work

Practice

Important questions
18
Board questions
19
Numericals & applications
8
Open practice set

Revise

  • One-shot revision, 26 minutes
  • Formula sheet for this chapter
  • Printable summary, 2 pages
Revision material

Prepare

Board appearances of Ray Optics and Optical Instruments by year
YearAsked asMarks
2025MCQ set12
2024Case based8
2023Short answer12
2022Long answer8
2021MCQ set8
All PYQs

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Target 95+ in Physics

Padho, Likho, Revise and Marks Laao. Chapter 9 of 14 — keep going while the format is fresh.

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