definition of a prism
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prism LINK / CITE ADD TO WORD LIST. noun. The definition of a prism is a solid geometric object (especially one made of glass) with sides that are parallelograms and end faces that are parallel and equal in shape and size, or anything that refracts light. An example of a prism is a glass object in a specific geometric shape that makes white light to show all the colors of the rainbow. Geom. a solid figure whose ends are parallel, polygonal, and equal in size and shape, and whose sides are parallelograms.
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Prisms Area of square prism = l * l, where l = edge length, Volume of rectangular prism = l * l * l * l, Pentagonal prisms: pentagonal prisms are collection of 5 cross section objects and it is a part of irregular prisms because edge length and angle of these types of prism are not equal in nature.
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- The term prism is a cool name for a special kind of three-dimensional solid. This tutorial defines the term prism and shows you how to name a prism using the shape of its bases.
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- (Technically, when the sides are rectangles, the shape is known as a right prism, indicating that the lateral faces meet the sides of the base at right angles. In this lesson, when we use the term prism, we mean a right prism. But there are other types of prisms, too.). A prism is described by the shape of its base.
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Prism (geometry) The term uniform prism or semiregular prism can be used for a right prism with square sides, since such prisms are in the set of uniform polyhedra. A uniform p-gonal prism has a Schlaefli schläfli symbol{t,2}. p
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Prism (geometry) A twisted prism is a nonconvex prism polyhedron constructed by a uniform q-prism with the side faces bisected on the square diagonal, and twisting the top, usually by 180/q degrees in the same direction, causing side triangles to be concave.
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Prism (geometry) For other uses, see Prism (disambiguation). In geometry, a prism is a polyhedron with an n-sided polygonal base, another congruent parallel base (with the same rotational orientation), and n other faces (necessarily all parallelograms) joining corresponding sides of the two bases. All cross-sections parallel to the base faces are congruent to the bases.
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Right rectangular prism - Definition and Meaning “Right” rectangular prism - A prism in which the angles between the base and sides are right angles.
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Triangular prism A uniform triagular prism is a right triangular prism with equilateral bases, and square sides. Equivalently, it is a pentahedron of which two faces are parallel, while the surface normals of the other three are in the same plane (which is not necessarily parallel to the base planes).
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- Definition of 'prism'. prism. A prism is a block of clear glass or plastic which separates the light passing through it into different colours. If you see something through a prism of something such as time or memory, your idea of it is affected by that thing.
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- A prism is a block of clear glass or plastic which separates the light passing through it into different colours. 2. countable noun [usually singular, NOUN of noun]
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binocular Usually, binoculars. Also called pair of binoculars, prism binoculars. an optical device, providing good depth effect, for use with both eyes, consisting of two small telescopes fitted together side by side, each telescope having two prisms between the eyepiece and objective for erecting the image. adjective.
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Prism (geometry) A right prism is a prism in which the joining edges and faces are perpendicular to the base faces. This applies if the joining faces are rectangular. If the joining edges and faces are not perpendicular to the base faces, it is called an oblique prism. For example a parallelepiped is an oblique prism of which the base is a parallelogram, or equivalently a polyhedron with six faces which are all parallelograms.
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- The simple definition of a prism is a solid object that has the same cross-section along the entire length of its shape. When you cut straight across an object, the cut portion is called a cross-section. Draw any shape using straight lines. Now use your imagination to see it extend upward and that is a prism. In eyeglasses, prisms are used primarily for double vision, positional correction, or convergence correction. Double vision (diplopia) is when a viewer sees two individual images using both eyes, instead of the one most people see, merged together by the brain.
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prism where n is the index of refraction of the prism and a the prism angle. Example: if the prism angle is equal to 10º and the index of refraction of the prism is 1.523, the deviation will be equal to 5.23º or 9.12 χ. (Fig. P17).
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- Prism definition: A prism is a block of clear glass or plastic which separates the light passing through it... | Meaning, pronunciation, translations and examples English Dictionary | Thesaurus | Translator | Grammar | Scrabble | Blog
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"What Do ""Prism"" and ""Base"" Mean on a Glasses Prescription?" Eyewear glasses with Prism at http://www.visio-rx.com. Prism and base refer to measurements to correct misaligned eyes. These numbers are not commonly seen on glasses prescriptions, but when they are present, they refer to a very important correction. Have Prism on your prescription?
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prism 1 (geometry) A polyhedron with parallel ends of the same size and shape, the other faces being parallelogram-shaped sides.  A transparent block in the shape of a prism (typically with triangular ends), used to split or reflect light.
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Prism Formula An prism is a polyhedron with 2 polygonal bases parallel to each other. The two polygonal bases are joined by lateral faces. The number of lateral faces are equal to the number of sides in the base. The lateral faces in a prism are perpendicular to the polygonal bases. Mostly the lateral faces are rectangle. In some cases the faces may be parallelogram.
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- lens. n. 1. (General Physics) a piece of glass or other transparent material, used to converge or diverge transmitted light and form optical images. 2. (General Physics) Also called: compound lens a combination of such lenses for forming images or concentrating a beam of light.. a doubly convex, transparent body in the eye, behind the pupil, that focuses incident light on the retina. 5. a body of rock or ore that is thick in the middle and thinner toward the edges, similar in shape to a biconvex lens.
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Triangular prism Volume Edit. The volume of any prism is the product of the area of the base and the distance between the two bases. In this case the base is a triangle so we simply need to compute the area of the triangle and multiply this by the length of the prism:
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- Pentagonal Prism. The pentagonal prism is a prism having two pentagonal bases and five rectangular sides. It is a heptahedron. The regular right pentagonal prism is uniform polyhedron . Its dual polyhedron is the pentagonal dipyramid. The surface area and volume for the right regular pentagonal prism of unit edge length are.
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lens noun, plural lenses. 1. a piece of transparent substance, usually glass, having two opposite surfaces either both curved or one curved and one plane, used in an optical device in changing the convergence of light rays, as for magnification, or in correcting defects of vision. 2. a combination of such pieces.
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Prism A prism is a polyhedron consisting of two parallel, congruent faces called bases. 1  A prism is named by the shape of its base. 2  Triangular Prism: A Prism with triangular bases is a Triangular Prism. 3  Rectangular Prism: A Prism with rectangular bases is a Rectangular Prism.  Cube: A prism with square bases is a cube.
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- Volume of a Trapezoidal Prism. Prisms are named for the polygons that form their bases. In this lesson, you will. focus on prisms whose bases are either triangles or quadrilaterals other than. squares and rectangles. Cherise is setting up her tent. Her tent is in the shape of a. trapezoidal prism.
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- A triangular prism has a triangle as its base, a rectangular prism has a rectangle as its base, and a cube is a rectangular prism with all its sides of equal length. A cylinder is another type of right prism which has a circle as its base.or example, when a triangular prism is unfolded into a net, we can see that it has two faces that are triangles and three faces that are rectangles. To calculate the surface area of the prism, we find the area of each triangle and each rectangle, and add them together.