Categorii: Tot - refraction - density - reflection - medium

realizată de Micaela Pagés 2 ani în urmă

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Refraction

When a wave moves from one medium to another, its speed changes, leading to refraction. This phenomenon is influenced by the angle of incidence and the optical density of the media involved.

Refraction

Refraction

Characteristics

Angle of incidence
Wave length
The wavelength of the incident ray.
Optical density
The greater the difference in density, the greater the degree of displacement.

Change in direction of a wave

passing from one medium to another
Caused by its change in speed

Types of refraction

Total reflection
When the angle of incidence is greater than 90º, the incident ray is not refracted, but is reflected on the separation surface of the media, which acts as a mirror.
Critical angle
When an incident ray crosses another medium with an angle of incidence equal to 90º, when it emerges it does so along the surface of the considered medium, producing what is called "emergence of friction".
Ordinary refraction
It refers to the fact that the angle of incidence is greater than 0º and less than 90º.
0° angle of incidence
When the incident ray arrives perpendicular to the surface of the medium, it is not refracted but continues with the rectilinear path it had.

This is a theoretical assumption that does not occur in reality.