that disperses light. Usually,
is prism is a transparent optical element with flat and polished surfaces
sides. Prisms can be made from any transparent materials like glass, plastic
a prism has a triangular base and rectangular
or fluorite. Water in a glass can also acts as prism. It also breaks white light
violet (ROYGVIB). You can see these colors when you look at a rainbow in our
into constituent colors namely: red, orange, yellow, green, blue, indigo and
sky.
droplets on the Earth's atmosphere. The
water droplets serve as tiny prisms that refract, reflect, and disperse sunlight
into spectrum of light appearing in the sky.
Spectrum
white
sunlight
red
orange
yellow
green
blue
glass prism
indigo
violet
Encyciopædia Britannica, inc
Figure 2: Dispersion of light​