EM Waves and their applications in MS PPT

EM wave

1. Electromagnetic (EM) Waves: Various Bands and Applications A Deep Dive into the EM Spectrum Presenter’s Name, Date

2. What are Electromagnetic Waves? Electromagnetic (EM) waves are transverse waves consisting of electric and magnetic fields. Key properties: Speed, wavelength, frequency, energy. EM waves travel at the speed of light in a vacuum and are used in technologies like radio, television, and medical imaging.

3. How EM Waves are Generated Electromagnetic waves are generated by oscillating electric charges, which create time-varying electric and magnetic fields. Sources include both natural (e.g., sunlight) and artificial (e.g., radio transmitters).

4. The Electromagnetic Spectrum The EM spectrum is a range of electromagnetic waves organized by their wavelength and frequency. It includes radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.

5. Properties of EM Waves Key relationships: Speed = Wavelength × Frequency, Energy = h × Frequency. EM waves vary in wavelength and frequency, but they all travel at the same speed in a vacuum.

6. Introduction to Radio Waves Radio waves have the lowest frequency and longest wavelength in the EM spectrum. They are widely used in communication technologies such as radio, television, and mobile phones.