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amaresh92
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light doesn't cotain any charge then how it fluctulate the electric and magnetic field in vacumn or medium.
amaresh92 said:But for the electric or magnetic field a charge is needed.
Light doesn't "fluctuate the electric and magnetic field", light is the fluctuations in the electro-magnetic field.amaresh92 said:light doesn't cotain any charge then how it fluctulate the electric and magnetic field in vacumn or medium.
amaresh92 said:light doesn't cotain any charge then how it fluctulate the electric and magnetic field in vacumn or medium.
Light propagation refers to the movement of electromagnetic waves through space. These waves consist of electric and magnetic fields that oscillate perpendicular to each other and to the direction of the wave's travel.
During light propagation, electric and magnetic fields are closely intertwined and cannot exist independently. Changes in one field will cause corresponding changes in the other field, creating a self-sustaining wave.
In a vacuum, light propagates at a constant speed of approximately 299,792,458 meters per second. In a medium, the speed of light is slower due to interactions with the atoms and molecules in the material.
The speed of light in a medium is inversely proportional to the refractive index of the material. This means that as the refractive index increases, the speed of light decreases.
Yes, external factors such as electric and magnetic fields, as well as temperature and pressure, can affect the speed and direction of light propagation. This is why light can be refracted, reflected, and diffracted when passing through different materials or encountering obstacles in its path.