Q:

# How does a prism work?

A:

A prism works by slowing down light proportionally to wavelength as it enters into the prism, which causes the rainbow effect. Light changes speed as it moves from the air to another substance. This causes the light to change course.

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In order to achieve the effect, the light must enter the prism at an angle. The light then bends once it is inside the prism and again when the light leaves the prism. Each wavelength of light gets bent at different angles. This causes each color to fan out and become more distinct.

## Related Questions

• A:

A prism has a polygonal base and a face opposite and congruent to the base, while a pyramid has a polygonal base and an apex at the opposite side. The edge of the pyramid's base and its apex form a triangle, and the number of sides of its base dictate how many triangular faces are present in the pyramid.

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• A:

A pentagonal prism has five lateral faces and two pentagonal bases, which equal seven faces. A prism has two congruent polygons that form the top and bottom of the shape. These polygons are referred to as bases. The remaining sides are referred to as lateral faces.

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• A:

A rectangular prism has six faces. Unlike many other prisms, the faces on a rectangular prism are all rectangles. For instance, a trapezoidal prism has two faces that are trapezoids while the other faces are rectangles.

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• A:

A pentagonal prism has 10 vertices because there are two five-sided shapes at both ends of a prism. A pentagonal prism has 15 edges and seven faces. Five faces are between the pentagons on each end.