Refraction Through a Prism

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Prism is a transparent optical element with flat, polished surfaces that refract light. The exact angles between the surfaces depend on the application. The traditional geometrical shape is that of a triangular prism with a triangular base and rectangular sides, and in colloquial use "prism" usually refers to this type. Some types of optical prism are not in fact in the shape of geometric prisms. Prisms are typically made out of glass, but can be made from any material that is transparent to the wavelengths for which they are designed.
A prism can be used to break light up into its constituent spectral colors (the colors of the rainbow). Prisms can also be used to reflect light, or to split light into components with different polarizations. Light changes speed as it moves from one medium to another (for example, from air into the glass of the prism). This speed change causes the light to be refracted and to enter the new medium at a different angle (Huygens principle). The degree of bending of the light's path depends on the angle that the incident beam of light makes with the surface, and on the ratio between the refractive indices of the two media (Snell's law). The refractive index of many materials (such as glass) varies with the wavelength or color of the light used, a phenomenon known as dispersion. This causes light of different colors to be refracted differently and to leave the prism at different angles, creating an effect similar to a rainbow. This can be used to separate a beam of white light into its constituent spectrum of colors. Prisms will generally disperse light over a much larger frequency bandwidth than diffraction gratings, making them useful for broad-spectrum spectroscopy. Furthermore, prisms do not suffer from complications arising from overlapping spectral orders, which all gratings have.
Prisms are sometimes used for the internal reflection at the surfaces rather than for dispersion. If light inside the prism hits one of the surfaces at a sufficiently steep angle, total internal reflection occurs and all of the light is reflected. This makes a prism a useful substitute for a mirror in some situations

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• Refraction
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[daniellindsay007]

@TheFatjoe248 Possibly the reason they have “boring” voices is that they are trying to educate you and not entertain you. Possibly they never went to Hollywood and instead decided that the real world is far more interesting. Possibly they couldn’t care less about ignoramus people like you who want to be entertained, you don’t have cable to watch????? I heard there is some great movies there about space aliens eating human beings……with great voices.

[TheFatjoe248]

Why do the people who make these video's have the most boring ass voices ever?

[kylemcquillan]

Isaac Newton and the Infinitesimal Derivative

[AdsBySid]

These accents are Indian accents and this is CBSE Grade 10 Physics in India, their videos are originally made for Grade X Physics in India and hence contain content only up to the syllabus.

[DaysforDays]

@daniellindsay007 Well... in the end it's novelty and emotion that stimulates the brain. If you're a person, and you have ears, it'll be hard for you to be entertained by a boring voice.

[DaysforDays]

@daniellindsay007 Well... in the end it's novelty and emotion that stimulates the brain. If you're a person, and you have ears, it'll be hard for you to be entertained by a boring voice.

[shinruko100]

This video is not helping me finish an assignment or helping me learn stuff so please dont waste my fucking time putting on those shitty videos

[MrTimn100]

@2:08

Class X CBSE help starts here. Good luck for your practicals!

[vigranth]

Thank you it was very helpful

[TheMissEMathers]

Thank you a lot it's very helpful

[sudharsan629]

thank u very much it explained me clearly and i will do my practicals easily