Concept of wave front , Concept of wave front The basis of Huygens wave theory , Physics

Concept of wave front , Physics

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Concept of wave front

The basis of Huygens wave theory of light is his principle concerning construction of wave front.
When a disturbance from a light source travels into ether medium in all three dimensions, the particles of the medium at different distancesfrom the source will be vibrating in different phases.
If we join all those particles which are in the same phase of Vibration, we get a surface which represents a wavefront.
These wave fronts can be of different shapes depending on the size and shape of a light source and the distance from it.
Now it is easy to imagine how rays are formed out of these wavefronts.
An imaginary line drawn normal to any wavefront represents the path along which light travels
This path is called light ray.

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Concept of wave front , Physics

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