Download the latest CBSE Class 12 Physics Electromagnetic Waves Formulae 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 8 Electromagnetic Waves
To secure a higher rank, students should use these Class 12 Physics Chapter 8 Electromagnetic Waves 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 8 Electromagnetic Waves Revision Notes for Class 12 Physics
2. The charging current for capacitor is 0.5 A. What is the displacement current across its plate?
3. Write an expression for the speed of e.m. waves in free space.
4. For an electromagnetic wave, write the relationship between amplitude of electric and magnetic fields in free space.
5. What was the range of wavelength of em waves produced by Professor J.C.Bose?
TWO MARKS QUESTIONS
6. What is displacement current? Why was this concept introduced?
7. Give one uses of each of the following:
a. Microwave
b. Infra-red wave
c. Ultra violet radiation
d. Gamma rays
8. Identify the following electromagnetic radiation as per the wavelength given below. Write one application of each.
a. 1mm
b. 10-3nm
THREE MARKS QUESTIONS-
9. Identify the following electromagnetic radiation as per the wavelength given below. Write one application of each.
6. 10-12m
7. 10-4m
8. 106m
10. Name the electromagnetic radiation having the wavelength range from 1mm to 700nm. Give its two important applications.
11. What is meant by electromagnetic spectrum? Give its four uses.
6. The displacement current is that current which comes into existence, in addition in to the conduction current, whenever the electric field and hence the electric flux changes with time.
7. A. radar b. treatment of muscular complaints c. sterilizing surgical instruments d. radiation therapy.
8. A. microwave used in radar system b. infra red used in treatment of muscular complaints.
9. Identification:- a. gamma rays use- radiotherapy b. Infrared rays use – haze photography c. long radio wave use in radio communication.
10. X-rays used in a. medical diagnosis and b. in study of crystal structure.
11. All the known radiation from the big family of electromagnetic wave which stretch over a long range of wavelengths. The orderly distribution of the electromagnetic wave in accordance with their wavelengths or frequency in to distinct group having widely different properties is called electromagnetic spectrum. For example the X rays is one part of spectrum whose use are-
(i) used in detecting fractures in bones
(ii) used in detecting faults,cracks,haws & holes in metal sheets
(iii) used in studying crystal structure
(iv) used in radiotherapy
(v) used in detecting pearls, oysters etc.
12. An oscillating charge radiates electromagnetic waves and these waves carry energy.
Please click the link below to download pdf file for CBSE Class 12 Phyiscs - Electromagnetic Waves Formulae.
| 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 8 Electromagnetic Waves Notes
Students can use these Revision Notes for Chapter 8 Electromagnetic Waves 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 8 Electromagnetic Waves 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 8 Electromagnetic Waves 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 8 Electromagnetic Waves. 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 Electromagnetic Waves Formulae 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 Electromagnetic Waves Formulae 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 Electromagnetic Waves Formulae 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 Electromagnetic Waves Formulae, Class 12 students fast revise formulas, key definitions before the exams.
No, all study resources on StudiesToday, including CBSE Class 12 Physics Electromagnetic Waves Formulae, are available for immediate free download. Class 12 Physics study material is available in PDF and can be downloaded on mobile.