Complete properties and examples of light refraction

Complete Refraction of Light Properties and Examples – In everyday life, we often encounter incidents of refraction of light. Maybe you’ve come across it exclusively but it’s hard to explain. When we were in school, we were also explained about the refractive nature of light along with its light refraction reference. So what is light refraction? On this occasion I will explain about the nature of light refraction and light refraction references in everyday life. For more details you can see below.

Properties and Examples of Complete Refraction of Light Properties and Examples of Complete Refraction of Light
Refraction of light

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Complete Properties and Examples of Refraction of Light

The definition of refraction of light is the incident where the direction of light is bent when it enters a medium of different optical density. For example, light rays passing through the air medium will have different directions when the light enters the water or glass medium. This difference is due to the refractive index or optical density is also not the same. The optical density in air is less than the optical density in glass. The optical density (refractive index) of air is 1 and the optical density (refractive index) of glass is 1.3. Below are some of the refractive properties of light along with light refraction references.

Refraction of Light

Refraction of light has properties that are used when it enters a different medium. Here are some properties of light refraction:

Properties and Examples of Complete Refraction of Light Properties and Examples of Complete Refraction of Light
Schematic of the Refraction of Light

Approaching the Normal Line

The first property of light refraction is to approach the normal line. Refraction will occur when light rays from a medium of less density go to a medium of greater density, there will be refraction of light that approaches the normal line. For example, light rays coming from the air enter the water.

Away from the Normal Line

The next characteristic of light refraction is away from the normal line. This refraction will occur when a light beam from a medium with a large density to a medium with a small density will occur refraction of light away from the normal line. For example, light rays coming from the water enter the air.

The direction of the light to be refracted is influenced by the index of refraction with respect to the angle of refraction. If the light beam approaches the normal line, the angle of refraction will be smaller, and vice versa.

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Example of Refraction of Light

We can observe the refraction of light in everyday life. Here are some references to refraction of light:

  • If you put a pencil or straw in a glass with water in it, it will look like it’s broken.
  • Rainbows are created because water droplets are refracted by light.
  • A clear pond or river seems to be shallow, even though the pond/river is quite deep.

The refraction of light was first discovered by Snell. Then Snell’s law was created, namely:

“The incident ray, the normal line, and the refracted ray are in the same plane (the same plane).”

The refractive index of refraction of light is a fixed number derived from the ratio of the sine of the angle of refraction to the sine of the angle of incidence. Here’s the formula:

Sin1 x n1 = Sin2 x n2

Problems example
The laser beam is faced towards a parallel plan glass. Then the laser beam that arrives has an angle of 45 degrees. However, once measured, the bias has an angle of 30 degrees. Then what is the refractive index in parallel plan glass?

Answer:
Sin1 x n1 = Sin2 x n2
Sin 45 x 1 = Sin 30 x n2
2/2 x 1 = 1/2 x n2
n2 = 2/2 :1/2
n2 = 2
= 1.4

Thus the clarification of the nature of light refraction and light refraction reference. Hopefully this article can add to your insight. Thank you.