A right angle prism is a versatile optical device that serves multiple purposes in the field of optics. It is commonly used as a mirror to deviate light through 90 degrees, allowing for precise control and manipulation of light beams. This makes it an essential tool in various applications such as laser technology, microscopy, and spectroscopy. Moreover, the right-angle prism can also function as a reflector by deflecting light through 180 degrees using total internal reflection. This phenomenon occurs when light travels from a denser medium to a less dense one at an angle greater than the critical angle. The result is that all incident light rays are reflected back into the denser medium without any loss of energy or intensity.
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