A kaleidoscope works by reflecting light that bumps into a reflective surface such as a mirror. It has two or more mirrors placed at an angle to each other. The mirror assembly is surrounded by a case, with an eyehole at one end of the mirrors and a collection of objects at the other end.Know More
These reflective surfaces typically form a triangle or V shape. When a kaleidoscope is turned, the pieces move and a different design can be seen. The reflections bounce back and forth inside the tube creating various images. What a person sees when looking through the eyehole is never exactly the same twice. Typically, kaleidoscopes have a collection of glass pieces, beads and buttons that form intricate and attractive designs. This is partly because of symmetry. All repeated images are symmetrical in relation to the image beside them. A precise combination of reflective surfaces results in precise symmetrical images.
The objects inside a kaleidoscope move, this is why after rotating or shaking the container, the objects never have the same arrangement a second time. It is also not possible to have two completely identical designs. Different patterns are formed as object reflections move from one side to another and merge with others. Three or more mirrors create a design with geometric and more intricate patterns and endless reflections. For example, a kaleidoscope with three mirrors creates complex triangular reflections.Learn more about Optics & Waves
Mirror reflections are used in the construction and working of solar cookers, solar heaters, periscopes, binoculars, looking mirrors, microscopes, cameras and in a kaleidoscope. Apart from plane mirrors, reflection of light from convex and concave mirrors is used in everyday applications too.Full Answer >
A convex mirror placed upside down or upright does not invert the image of its subject. A convex mirror bows outward, and therefore its focal point is behind its surface. If the focal point is at or behind the surface of a reflective object, then images observed in that object appear consistent with the viewer's orientation.Full Answer >
The image in a plane mirror is right side up and full size. It is a horizontal reverse of the object and is called a virtual image. The object's distance from the mirror and the image's distance from the point of reflection are equal.Full Answer >
Sound travels much more slowly than light. The speed of light is colloquially known as the cosmic speed limit as physical constraints prevent objects of macroscopic scale from traveling faster than light.Full Answer >