Here is the CBSE Class 12 Physics Dual Nature Of Matter And Radiation Notes Set 02 for your studies. Use these Class 12 Physics revision notes, created by professional educators for the 2026-27 academic term. They make difficult ideas very easy to understand and focus on core definitions, helping Class 12 students prepare quickly before exams.
Revision Notes for Class 12 Physics Chapter 11 Dual Nature of Radiation and Matter
Use these Class 12 Physics Chapter 11 Dual Nature of Radiation and Matter notes for rapid revision before your exams. Designed specifically for school tests and final evaluations, these summaries break down complex sections so you can understand everything clearly.
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
Free study material for Physics
Download CBSE Revision Notes: Class 12 Physics
Key Concepts & Summary for Class 12 Physics Chapter 11 Dual Nature of Radiation and Matter
Utilize these Revision Notes for Chapter 11 Dual Nature of Radiation and Matter to accelerate your exam readiness. Formatted under recent CBSE guidelines for Class 12, these summaries focus on critical curriculum components. Regular revision of these core points leads to superior performance in school tests.
Core Chapter Summary & Practice Sets for Chapter 11 Dual Nature of Radiation and Matter
Our expert team has used the official NCERT book for Class 12 Physics to design these notes. These are the notes that definitely help 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.
Enhance Retention with Free Study Materials
To secure top results, students are encouraged to practice the MCQ questions and worksheets provided on this site. These extra solved tasks ensure you have fully internalized Chapter 11 Dual Nature of Radiation and Matter. All resources are free and aligned with current Physics testing guidelines. Daily engagement with these revision notes guarantees improved grades.
FAQs
You can download the teacher prepared revision notes for CBSE Class 12 Physics Dual Nature Of Matter And Radiation Notes Set 02 from StudiesToday.com. These notes are designed as per 2026-27 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 02 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 02 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 02, 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 02, are available for immediate free download. Class 12 Physics study material is available in PDF and can be downloaded on mobile.