Refraction

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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.