Electromagnetic waves are all around us. Electromagnetic waves are a type of energy that can travel through space. They are created by the vibration of electric and magnetic fields.In this video we will analyze about electromagnetic waves.
• 0:00 Introduction to Electromagnetic waves
• 01:52 Electric and Magnetic force
- Electric Field
- Magnetic Field
• 04:43 Electromagnetic Force
- Why we combine electric and magnetic force
- Faraday’s Idea on Electricity and magnetism
- Relationship between electric and magnetic force
- Electromagnetic Induction
- Generator
• 08:21 Origin of Electromagnetic waves
- James Clerk Maxwell
- Four equations on Electromagnetism
- Why light and Electromagnetic waves are same
- Evidence of Existence of Electromagnetic Waves
• 12:20 Structure of Electromagnetic Wave
- Crest and Through
- Wavelength, Amplitude and Frequency
- Relationship between Wavelength and Frequency
- Energy of Electromagnetic Waves
• 15:51 Classification of Electromagnetic Waves
- Electromagnetic Spectrum
• 17:26 Visible Light
- Bohr’s Model of Atom
- Energy of an Electron
- Origin of Visible Light
- What is Photon
- Wavelength, Frequency and energy of Visible Light
- Source of Visible Light
• 22:35 Infrared Radiation
- Wavelength, Frequency and energy of Infrared
- Dipole Molecules
- Origin of Infrared
- Electromagnetic radiation as Heat
- Infrared cameras
• 26:48 Microwaves
- Wavelength, Frequency and energy of Microwaves
- How microwaves oven works
- Uses of microwaves
• 28:20 Radio waves
- Wavelength, Frequency and energy of Radio waves
- Non ionizing Radiation
- Source of Radio waves
- Non ionizing radiation vs ionized radiation
• 30:31 Ultraviolet Radiation
- Wavelength, Frequency and energy of Ultraviolet
- Bohr’s model of atom
- Energy of electrons
- Origin of Ultraviolet
- Classification of Ultraviolet
- How Ultraviolet affects DNA
- How Ozone layer prevents Ultraviolet
• 33:43 X rays
- Wavelength, Frequency and energy of X rays
- Origin of X rays
• 35:09 Gamma rays
- Wavelength, Frequency and energy of Gamma rays
- Sources of Gamma rays
- Nuclear Fusion and Nuclear Fission
- Nuclear Weapons
- The real threat to Humanity
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