How to Use a Prism?
The best way to use a prism is to keep it in front of a light source, like sunlight and incandescent white light bulb and a screen behind it. The prism will disperse white light into its constituent colors, which gives the appearance of a rainbow when observed on the screen.
Rectangular prism
A rectangular prism is a solid 3-dimensional object which has six faces (sides) that are rectangles. Aside, it has 12 edges and eight vertices. It is also called a cuboid. The surface area of a rectangular prism is the product of its length and breadth, and its volume is the product of its length, breadth, and height.
Triangular Prism
A triangular prism is a polyhedron made up of two triangular bases and three sides, making that five faces. Further, it has six vertices and nine edges. The two triangular bases are parallel and congruent to each other, whose area is one-half times the product of the base length and altitude. The surface area of a triangular prism is the sum of the areas of the sides and bases. The volume is the product of the area of the base and the thickness of the prism. Triangular prisms made to disperse light are usually made with bases that are equilateral triangles so that the angles between adjacent sides of the prism are 60°. This type of prism is called refracting prism. Some prisms have bases that are isosceles right triangles (45° – 90° – 45°) and reflect light using the principle of total internal reflection. Image Courtesy: Fineartamerica.com
Hexagonal Prism
A hexagonal prism is composed of two hexagonal (six-sided) bases and six rectangular sides, making it a polyhedron with eight faces, 18 edges, and 12 vertices. The surface area of a hexagonal prism is the sum of the areas of all the sides and bases. The volume is the product of the basal area and the thickness of the prism.
Trapezoidal Prism
A trapezoidal prism consists of two congruent trapezoids that are connected by four rectangles. The two congruent trapezoids are its top and lower base. Trapezoids are quadrilaterals (four-sided figures) that have only one pair of parallel lines. The four rectangles that connect the corresponding sides of the two bases are called the lateral faces of the prism. The surface area of a trapezoidal prism is the sum of the areas of all the sides and bases. The volume is the product of the basal area and the thickness of the prism.
