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Physics Optics
reflection, refraction, diffraction, dispersion
Term | Definition |
---|---|
Critical angle | minimum angle of incidence for which total internal reflection occurs |
Incident angle | has to be greater than critical angle |
Optical Density | property of a transparent medium that describes the speed at which light travels through it. |
Refraction | Bending of light as it enters a new material |
Dispersion | process of separating poly chromatic (multi color) light into its component wavelength |
Index of refraction | based on speed of light in the medium |
Refracted angle | the angle between a refracted ray and the normal drawn at the point of incidence to the interface at which refraction occurs. |
Snell's law (law of refraction) | When light travels from one medium to another |
Which color of light will undergo the most amount of diffraction? | red |
The reason light under goes refraction as it changes materials is | light changes speed |
bending of light around a barrier is | diffraction |
Mirages and Rainbows are both a product of | refraction |
As light travels from a low density material to a high density material the light wave __________ | slows down, bend towards (smaller angle) |
As light passes through materials of different densities what happens? | light refracts |
Using a prism to separate white light into its full spectrum of colors by wavelength is known as | dispersion |
In order for total internal reflection to happen the index of refraction for the incident material must be ___________ the index of refraction of the refracted material. | larger |
Which color of light will undergo the most amount of refraction? | violet |
Which color of light will disperse the least in a prism? | red |
concave | correct's the vision of a person whose eye is too short |
convex | correct's the vision of a person whose eye is too long |