Is Light Just a Disguise for Electric and Magnetic Fields?

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In summary, a light-electromagnetic wave is a type of electromagnetic radiation that consists of electric and magnetic fields oscillating perpendicular to each other and to the direction of wave propagation. It is produced when an electric charge undergoes acceleration and travels at a speed of approximately 300,000,000 meters per second in a vacuum. The wavelength of a light-electromagnetic wave has a direct effect on its properties, with shorter wavelengths having higher frequencies and carrying more energy. This phenomenon is responsible for the perception of different colors and is utilized in various technologies such as radio and medical imaging. Overall, light-electromagnetic waves have a multitude of practical applications and are essential for our understanding and experience of the world.
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pardesi
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well an introductory course on electromagnetic waves starts with lines like
Light is nothing but electromagnetic wave which themselves are nothing but time varying electric and magnetic fields.
well does that mean a source of light produces electric and magnetic field in disguise which are varying with time and that in turn gives a sense of vision?
 
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Yes, it does.
 
  • #3
wow that yes sounded so wonderful:smile:
 

1. What is a light-electromagnetic wave?

A light-electromagnetic wave is a type of electromagnetic radiation that can travel through a vacuum or a medium. It is a combination of electric and magnetic fields that oscillate perpendicular to each other and to the direction of wave propagation.

2. How is a light-electromagnetic wave produced?

A light-electromagnetic wave is produced when an electric charge undergoes acceleration. This can happen when an electric current flows through a wire or when an atom or molecule undergoes a change in energy state.

3. What is the speed of light-electromagnetic waves?

The speed of light-electromagnetic waves in a vacuum is approximately 299,792,458 meters per second, which is often rounded to 300,000,000 meters per second for convenience. This speed is considered a fundamental constant in physics.

4. How does the wavelength of a light-electromagnetic wave affect its properties?

The wavelength of a light-electromagnetic wave is inversely proportional to its frequency. This means that shorter wavelengths have higher frequencies and carry more energy. Different wavelengths of light are perceived by the human eye as different colors, and longer wavelengths are used in technologies such as radio waves and microwaves.

5. What are the practical applications of light-electromagnetic waves?

Light-electromagnetic waves have a wide range of practical applications, including communication technologies such as radio, television, and cellular networks. They are also used in medical imaging, remote sensing, and astronomy. In addition, light-electromagnetic waves play a crucial role in our daily lives, allowing us to see and experience the world around us.

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