KCET Electromagnetic Waves Topics 2025 include Displacement Current, Electromagnetic Waves, Characteristics of Electromagnetic Waves etc. Aspirants of the KCET 2025 exam can expect 2-3 questions from the Electromagnetic Waves Chapter.
KCET Electromagnetic Waves Topics 2025:
Electromagnetic Waves is one of the important chapters in the KCET 2025 examination. KCET Electromagnetic Waves Topics 2025 include Displacement Current, Electromagnetic Waves, Characteristics of Electromagnetic Waves etc. Students planning to appear for the
KCET 2025
exam must note that Electromagnetic Waves will carry 2-3 questions from the second-year physics PUC syllabus. Candidates can obtain 6 to 9 marks if they master KCET 2025 Electromagnetic Waves topics. Therefore students can prepare a schedule for this chapter along with the other topics to be covered from the
KCET 2025 Syllabus.
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| KCET Previous Year Question Papers | KCET 2025 Exam Date |
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KCET Electromagnetic Waves Topics 2025
Here is the list of topics covered in KCET Electromagnetic Waves:
- Displacement Current: Need of displacement current, expression of displacement current, expression of displacement current, expression for Ampere-Maxwell law
- Electromagnetic Waves
- Characteristics of Electromagnetic Waves (Expression of speed of light)
- Electromagnetic Spectrum: Wavelength range & their uses
Topics in Electromagnetic Waves | Brief Explanation |
|---|---|
Displacement Current | A time-varying electric field called displacement current helps keep a magnetic field continuous. |
Electromagnetic Waves | One type of radiation that moves through the entire universe is electromagnetic waves. They are created when a magnetic field and an electric field integrate. |
Characteristics of Electromagnetic Waves |
|
Electromagnetic Spectrum | The entire spectrum of electromagnetic radiation, arranged according to wavelength or frequency, is known as the electromagnetic spectrum. |
Also Check - KCET Subject Wise Syllabus 2025
What are Electromagnetic Waves?
The electromagnetic waves term comes from Physics, which means a type or form of radiation that travels through the universe. The waves which are created using the vibrations between the magnetic field and electric field are called electromagnetic waves known as EM waves.
For Example: The radio waves, visible light, x-rays, gamma rays, and others are examples of electromagnetic waves.
Electromagnetic Waves: Types & Definitions
Here are some important types and definitions that will help the students understand the basics of this chapter, they can refer to the type of electromagnetic waves here:
Types of Electromagnetic Waves | Definitions |
|---|---|
Gamma Rays | The highest energy and shortest wavelength, used to study nuclear processes and treat cancer. |
X-Rays | Higher-energy waves are employed in security screening and medical imaging (X-rays). |
Ultraviolet rays | A kind of light with a wavelength between 100 and 400 nanometers (nm) that is part of the electromagnetic spectrum: |
Visible light | The only part that the human eye can see, it serves a variety of purposes from optical communications to others. |
Infrared light | A kind of electromagnetic radiation that falls between the microwave and visible ends of the light spectrum. It has a wavelength between 800 nm and 1 mm. |
Microwaves | With wavelengths longer than infrared waves but shorter than other radio waves, microwaves are a kind of electromagnetic radiation. Electromagnetic waves with wavelengths as long as one meter and as short as one millimetre are known as microwaves. |
Radio Waves | Used in systems like radios and other communication systems, radio waves have the longest wavelengths. |
Types of Radiation, Frequency, & Wavelength Range
Refer to the tabular representation below for the types of radiation, frequency, and their wavelength range.
Type of Radiation | Frequency Range (Hz) | Wavelength Range |
|---|---|---|
Gamma-rays | 1020 – 1024 | < 10-12 m |
X-rays | 1017– 1020 | 1 nm – 1 pm |
Ultraviolet | 1015 – 1017 | 400 nm – 1 nm |
Visible | 4 x 1014 – 7.5 x 1014 | 750 nm – 400 nm |
Near-infrared | 1 x 1014 – 4 x1014 | 2.5 μm – 750 nm |
Infrared | 1013 – 1014 | 25 μm – 2.5 μm |
Microwaves | 3 x 1011 – 1013 | 1 mm – 25 μm |
Radio waves | < 3 x 1011 | > 1 mm |
Tips & Tricks to Study Electromagnetic Waves Chapter
KCET aspirants can refer to the tricks & tips here to study the electromagnetic chapter and cover the basics easily.
- Understand Core Concepts: Applicants need to have an understanding of all the core concepts of the electromagnetic waves chapter so that they can easily solve the questions even if they are out of the syllabus.
- Make Short Notes: It is also beneficial to make notes on the chapter that you are reading, it helps you during the revision time. You can quickly take help of the notes and revise during the end days as the exam approaches.
- Write Down Formulas: It is important to memorize the formulas to solve the questions based on equations in the exam. The best way to memorize the formulas is by writing them down.
- Solve Practice Papers of the Chapter: Solve the electromagnetic waves chapter practice papers in a given time frame to judge your speed and performance for the exam.
- Refer to NCERT Books: NCERT books are the best for any exam preparation. Applicants can study from the NCERT books first and then go through the other reference books.
- Time Management: Learn time management and divide your time according to the weightages of the chapter. Study the chapters with maximum weightage first and then study the chapters with less weightage.
We hope that these tips & tricks here will help the KCET aspiring students to prepare well for the electromagnetic waves chapter.
Best Books for KCET Physics Preparation
Refer to the best books for KCET physics preparations here:
- NCERT class 11 and 12 books for physics
- Fundamental of physics by S Chand
- Physics for Karnataka CET & COMEDK
- Fundamentals of physics by Pradeep
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