Ray Optics and Optical Instruments Class 12 RAPID REVISION | CBSE 12th Physics Chapter-9 One Shot
Next Toppers - 12th Science
Class 12 · Physics · Ch 9
Electromagnetic Waves; Optics
Not started
10 concepts to cover
10 concepts
Stuck on one topic? Watch a short explainer instead of a full lecture.
Reflection by spherical mirrors and mirror formula
Refraction and refractive index
Total internal reflection and optical fibres
Refraction at spherical surfaces
Under 30 minutes, night-before recap
Next Toppers - 12th Science
Eduniti - Physics by Mohit Goenka_IITKGP
Full chapter in one sitting, Hindi / Hinglish
Concepts + PYQs at competitive depth
JEE Wallah
Yakeen
Competition Wallah
Multi-hour whole-subject sessions that cover this chapter
Rakshak Sir Science
Physics Wallah - Alakh Pandey
NCERT Wallah
Rakshak Sir Science
NCERT Wallah
PW JEE
Vedantu JEE Made Ejee
PW NEET
Complete free lecture series for the subject
NEET Alchemy by Unacademy
PW JEE
Pro feature
Unlock everything for ₹999/year — tests, notes, predictor, Genie and all updates.
₹2,999 · launch offer for the first 100 students
33.8 L subsHinglishClass 11, 12
Exam-first one-shots: every concept of a chapter then JEE Main + Advanced PYQs in one sitting (6-12 h).
Best for: The go-to free JEE chapter one-shot library for all three subjects. · c11-phy · c11-mat
Open channel3.5 L subsHinglishClass 9, 10, 11, 12
NCERT-complete physics one-shots with derivations; 'Complete Physics in 3 Days' board marathons.
Best for: Class 12 physics for boards (derivations, numericals). · c12-phy
Open channel1.4 Cr subsHinglishClass 9, 10, 11, 12
Slow, classroom-style chapter-wise lecture series covering every NCERT topic and exercise - a free full course, not a one-shot.
Best for: Starting a chapter from zero, and NCERT exercise solutions; best free full-course playlists. · c10-mat · c11-phy
Open channel1.4 Cr subsHinglishClass 11, 12
High-energy, story-driven concept building followed by lots of PYQs; very long complete-syllabus one-shots.
Best for: Physics for NEET, especially mechanics and electrostatics; whole-subject marathons before the exam. · c11-phy
Open channelPro feature
Unlock everything for ₹999/year — tests, notes, predictor, Genie and all updates.
₹2,999 · launch offer for the first 100 students