A prism can help us understand the refraction and the reflection of light when it asses between 2 different mediums ( from one medium into another less refractive or from one medium into another more refractive ) and the ray of light may emerge out of the prism by refraction or by reflection and sometimes by total internal reflection ( by obeying the 2 laws of reflection and by making the angel of incidence equal to the angle of reflection ) and sometimes it may continue its path without deviation that is when the angle of incidence is equal to 0 degrees then the angle of refraction will be equal to 0 degrees this is called undeviated !
It separates the wavelengths contained in a beam of light.
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There's the rectangular prism, the triangular prism, hexagonal prism, pentagonal prism, the cube, and the octagonal prism.
A Triangular Prism A Rectangular Prism An Octogonal Prism (basically 3D Shapes)
a triangular prism has to triangular bases while a rectangular prism has a rectangle as the bases.
Cylinder (circular prism) Cube (square prism) Cuboid (rectangle prism)
A rectangular prism has 6 faces. A pentagon prism has 7 faces. Therefore a rectangular prism has one less face than a pentagonal prism.