Download the latest CBSE Class 12 Physics Dual Nature Of Matter And Radiation Notes Set B in PDF format. These Class 12 Physics revision notes are carefully designed by expert teachers to align with the 2025-26 syllabus. These notes are great daily learning and last minute exam preparation and they simplify complex topics and highlight important definitions for Class 12 students.
Chapter-wise Revision Notes for Class 12 Physics Chapter 11 Dual Nature of Radiation and Matter
To secure a higher rank, students should use these Class 12 Physics Chapter 11 Dual Nature of Radiation and Matter notes for quick learning of important concepts. These exam-oriented summaries focus on difficult topics and high-weightage sections helpful in school tests and final examinations.
Chapter 11 Dual Nature of Radiation and Matter Revision Notes for Class 12 Physics
7. DUAL NATURE OF MATTER & RADIATION
GIST
1. The elementary particle in an atom having negative charge of magnitude 1.6 x 10-19 C and mass of 9.1 x 10-19 kg is called electron.
2. There are four types of electron emission, namely, Thermionic Emission, Photoelectric Emission, Field Emission and secondary emission.
3. The minimum energy required by an electron to escape from the metal surface is called work function.
5. Work function is conveniently expressed in electron volts ( e V ).
6. One electron volt is the energy gained or lost by an electron while passing through a potential difference of one volt.
7. The phenomenon of emission of electrons from metal surface when suitable high frequency radiation incidents on it is called photoelectric effect. The electrons thus emitted are called photo electrons.
8. The electric current in the circuit constituting the photo electrons is called photoelectric current. It depends on the intensity of incident radiation, potential difference applied between the two electrodes and the nature of the material.
9. The minimum negative voltage required to stop completely the photo electric current is called stopping potential.
10The frequency of incident radiation below which no photo electric effect takes place is called threshold frequency.
Laws of photoelectric effect:
1. The photoelectric emission is an instantaneous process.
2. For a given metal and frequency of radiation the photoelectric current is directly proportional to the intensity of incident radiation.
3. For a given metal if the frequency of incident radiation below its threshold frequency then no photoelectric effect takes place.
4. The maximum kinetic energy of photo electron is directly proportional to the frequency of incident radiation and independent of its intensity.
Please refer to the link below for CBSE Class 12 Physics Notes - Dual Nature of Matter and Radiation
| CBSE Class 12 Physics Alternating Current Notes Set A |
| CBSE Class 12 Physics Alternating Current Notes Set B |
| CBSE Class 12 Physics Wave Optics Notes Set A |
| CBSE Class 12 Physics Wave Optics Notes Set B |
Important Practice Resources for Class 12 Physics
CBSE Class 12 Physics Chapter 11 Dual Nature of Radiation and Matter Notes
Students can use these Revision Notes for Chapter 11 Dual Nature of Radiation and Matter to quickly understand all the main concepts. This study material has been prepared as per the latest CBSE syllabus for Class 12. Our teachers always suggest that Class 12 students read these notes regularly as they are focused on the most important topics that usually appear in school tests and final exams.
NCERT Based Chapter 11 Dual Nature of Radiation and Matter Summary
Our expert team has used the official NCERT book for Class 12 Physics to design these notes. These are the notes that definitely you for your current academic year. After reading the chapter summary, you should also refer to our NCERT solutions for Class 12. Always compare your understanding with our teacher prepared answers as they will help you build a very strong base in Physics.
Chapter 11 Dual Nature of Radiation and Matter Complete Revision and Practice
To prepare very well for y our exams, students should also solve the MCQ questions and practice worksheets provided on this page. These extra solved questions will help you to check if you have understood all the concepts of Chapter 11 Dual Nature of Radiation and Matter. All study material on studiestoday.com is free and updated according to the latest Physics exam patterns. Using these revision notes daily will help you feel more confident and get better marks in your exams.
You can download the teacher prepared revision notes for CBSE Class 12 Physics Dual Nature Of Matter And Radiation Notes Set B from StudiesToday.com. These notes are designed as per 2025-26 academic session to help Class 12 students get the best study material for Physics.
Yes, our CBSE Class 12 Physics Dual Nature Of Matter And Radiation Notes Set B include 50% competency-based questions with focus on core logic, keyword definitions, and the practical application of Physics principles which is important for getting more marks in 2026 CBSE exams.
Yes, our CBSE Class 12 Physics Dual Nature Of Matter And Radiation Notes Set B provide a detailed, topic wise breakdown of the chapter. Fundamental definitions, complex numerical formulas and all topics of CBSE syllabus in Class 12 is covered.
These notes for Physics are organized into bullet points and easy-to-read charts. By using CBSE Class 12 Physics Dual Nature Of Matter And Radiation Notes Set B, Class 12 students fast revise formulas, key definitions before the exams.
No, all study resources on StudiesToday, including CBSE Class 12 Physics Dual Nature Of Matter And Radiation Notes Set B, are available for immediate free download. Class 12 Physics study material is available in PDF and can be downloaded on mobile.