Revise notes
Class 12 Physics
Ray Optics and Optical Instruments
learnohub

Introduction

  • We will try to learn what is light and also will try to understand some important phenomenon related to light and applications of optics in different optical instruments like microscope, telescope etc.
  • How the phenomenon of laws of reflection and refraction play important part in our day to day to life.
  • Light helps us to see all the objects around us. The entire phenomenon related to this we try a have a look on them.
  • Also try to understand why certain objects enhance properties of light more as compared to others.

Class_12_Physics_Ray_Optics_Diagram1

  • What is Light?

    • Light is a form of energy which enables us to see things around us.
    • Light travels in straight path.
    • Speed of light is c =3 x 108m/s.
    • Light waves are the most common form of Electromagnetic waves.
    • Ray of light is the path of the light wave travelling from one point to another.
    • Beam of light is bunch of rays of light.

Class 12 Physics Ray Optics and Optical Instruments NCERT Chapter 9 Free Notes for Best Revision

Revision of Class 12 Physics Ray Optics and Optical Instruments is a crucial aspect of effective learning. Revision plays a vital role in the learning process and is especially important before exams. Here are some key points you can consider emphasizing in your content:

  1. Retention and Memory: Regularly reviewing and revisiting the material of Class 12 Physics Ray Optics and Optical Instruments helps reinforce the concepts in students' minds. It strengthens memory pathways, making it easier to recall information during exams and beyond.
  2. Consolidation of Knowledge: When you revise notes, you are essentially consolidating your knowledge. This means connecting new information with what you already know, making the overall understanding more robust.
  3. Identifying Knowledge Gaps: Revision allows students to identify any gaps in their understanding or areas where they need further clarification. This gives you a chance to seek help or delve deeper into those topics. For detailed understanding, you can always refer to the videos of Ray Optics and Optical Instruments Class 12 Physics NCERT Chapter 9 on LearnoHub.com
  4. Building Confidence: As you revise Ray Optics and Optical Instruments Class 12 Physics and become more familiar with the content, your confidence in your abilities grows. Confidence is a crucial factor in exam performance as it reduces anxiety and allows you to approach exams with a positive mindset.
  5. Different Revision Techniques: Use a variety of revision techniques such as summarizing notes, creating flashcards, practicing past papers, discussing concepts with peers, and teaching others. Different techniques work for different students, and it's essential to find what suits you the best. You can also attend the LIVE Revision classes on LearnoHub.com or watch the LIVE Revision Race videos of LearnoHub on Ray Optics and Optical Instruments Class 12 Physics NCERT Chapter 9.
  6. Spacing Effect: Spacing out revision sessions over time, rather than cramming all at once, has been shown to improve long-term retention. Create a revision schedule leading up to the exams to allow for spaced practice.
  7. Regular Revision over Cramming: Regular and consistent revision throughout the academic year is very important. Waiting until the last moment to cram everything can be overwhelming and less effective than spaced-out revision.
  8. Self-Assessment: Assess your understanding periodically through quizzes or self-tests. This helps you to gauge your progress and identify areas that need further attention. Refer Class 12 Ray Optics and Optical Instruments Online Tests.
  9. Balanced Approach: Remind students to strike a balance between revision and other activities. Adequate rest, exercise, and relaxation are essential for optimal learning and performance.
  10. Seeking Help: If you face difficulties during the revision process, Refer the videos of Class 12 Physics Ray Optics and Optical Instruments. Clearing doubts promptly is crucial for a better grasp of the subject matter. You can always ask your doubts on Ray Optics and Optical Instruments Class 12 Physics NCERT Chapter 9. “Ask a Question” section of LearnoHub.com

By highlighting the benefits and strategies of effective revision, you can approach your studies more mindfully and achieve better results in your exams. Best of luck bachhon!

Class 12 Physics seems to be a quite difficult subject for a lot of students. But, if you get a very good conceptual understanding of the subject, it can be very interesting for you.

We, at LearnoHub, will give our best to make Class 12 Physics Ray Optics and Optical Instruments NCERT Chapter 9 super-duper easy for you.

We aim at making learning fun as well as engaging for you with our complete end-end learning content with Ray Optics and Optical Instruments Class 12 Physics Best videos, Notes, NCERT pdf, NCERT complete syllabus, tests and Practice Questions.

Always remember, it is very important to study with full concentration during Revision. Here are a few tips for you on how to revise with full focus:

  1. Create a Distraction-Free Environment: Find a quiet and comfortable place to study where you can minimize distractions. Turn off or silence your phone, log out of social media accounts, and inform others around you that you need uninterrupted study time. A dedicated study environment will help you focus better.
  2. Set Specific Goals: Before starting your study session, set clear and achievable goals. Break down your study material into smaller tasks, and plan what you want to accomplish during each session. Having specific goals will give you a sense of direction and purpose, making it easier to concentrate.
  3. Use the Pomodoro Technique: The Pomodoro Technique is a time management method that involves studying in short, focused intervals, typically 25 minutes, followed by a short break of 5 minutes. After completing four sessions, take a longer break of around 15-30 minutes. This technique can improve focus and productivity by providing regular breaks to recharge.
  4. Stay Organized: Keep your study materials, notes, and resources well-organized. Having everything you need at hand will save time and reduce distractions caused by searching for materials. Use color-coded folders or digital tools to maintain a structured study system.
  5. Practice Mindfulness and Meditation: Before you begin studying, take a few minutes to practice mindfulness or meditation. Deep breathing exercises and clearing your mind of distractions can help you approach your study session with a calm and focused mindset.

Remember, studying with full concentration is a skill that takes time and practice to develop. If you find your mind wandering during study sessions, gently bring your focus back to the task at hand and be patient with yourself. With consistent effort, you can improve your ability to concentrate and make the most of your study time.

Last but not the least, To get the best hold on Class 12 Physics Ray Optics and Optical Instruments Book Chapter 9. Do not forget to check out:

  • Ray Optics and Optical Instruments Class 12 Physics Best videos
  • Ray Optics and Optical Instruments Class 12 Physics NCERT Solutions
  • Class 12 Physics Ray Optics and Optical Instruments Revision notes
  • Ray Optics and Optical Instruments Class 12 Physics DPPS, Download PDF of solutions
  • Class 12 Physics Ray Optics and Optical Instruments Online Tests
  • Class 12 Physics Sample papers

Classes

  • Class 4
  • Class 5
  • Class 6
  • Class 7
  • Class 8
  • Class 9
  • Class 10
  • Class 11
  • Class 12
  • ICSE 6
  • ICSE 7
  • ICSE 8
  • ICSE 9
  • ICSE 10
  • NEET
  • JEE

YouTube Channels

  • LearnoHub Class 11,12
  • LearnoHub Class 9,10
  • LearnoHub Class 6,7,8
  • LearnoHub Facts
  • LearnoHub Kids

Overview

  • FAQs
  • Privacy Policy
  • Terms & Conditions
  • About Us
  • NGO School
  • Contribute
  • Jobs @ LearnoHub
  • Success Stories
© Learnohub 2025.