Explain the effect of the change of refractive index on different factors.
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Solution
Refractive index
The refractive index of a media is defined as the ratio of light velocity in a vacuum to light velocity in that medium.
The speed of light and the direction of light beams are two main factors that alter as the refractive index changes.
Effect of the change of refractive index on different factors.
Speed of light: It is difficult for light rays to flow through a medium with a high refractive index. The passage of light beams across the medium consumes some of their energy. The speed of light in a medium with a high refractive index reduces as a result of this. Similarly, if the medium is rarer or has a low refractive index, the speed of light rays passing through it is fast.
The direction of propagation: The direction of light rays changes as their speed changes, and as the refractive density of the medium they are traveling through changes. When light moves from a denser to a rarer medium, the light rays migrate away from the normal and toward the medium's partition surface. If light rays pass from a rarer to a denser media, they will migrate towards the normal to the partition surface of the mediums.