Have you ever observed that rainbow occurs only after rain, by thinking so you may feel obviously that rainbow is related to a chemistry between sun and rain, its a correct guess.
yes rainbow occurs only after the sun rays pierce through the rain water droplets and form a pattern of 7 colors we generally exclaim as Rainbow Colors, or physics teacher teaches them as VIBGYOR. But even after learning this all in my lower classes, I used to feel something strange: If Rainbow is all a reflection of light through a water droplet. then why can't I create my own? well if I throw a beam of light on a stream of water vertically flowing down from a tap or some other source, cant I get my own Rainbow??? No we can't. but why?
Well Science clarifies that reflection or Refraction: whatever the thing takes place there actually, depends on the angle at which the light is approaching or commonly striking the target water drop. Its at an angle of 42 degrees that when a beam of light hits a water droplet, the droplet acts as a minute prism that tears the ray into seven different colors that form a band of thread like pattern: we enjoy exclaiming "We have seen a Rainbow!".
Hence, if want to have a small portable rainbow of your own: simply use a protractor and hit the water with accurate angle :) :)
yes rainbow occurs only after the sun rays pierce through the rain water droplets and form a pattern of 7 colors we generally exclaim as Rainbow Colors, or physics teacher teaches them as VIBGYOR. But even after learning this all in my lower classes, I used to feel something strange: If Rainbow is all a reflection of light through a water droplet. then why can't I create my own? well if I throw a beam of light on a stream of water vertically flowing down from a tap or some other source, cant I get my own Rainbow??? No we can't. but why?
Well Science clarifies that reflection or Refraction: whatever the thing takes place there actually, depends on the angle at which the light is approaching or commonly striking the target water drop. Its at an angle of 42 degrees that when a beam of light hits a water droplet, the droplet acts as a minute prism that tears the ray into seven different colors that form a band of thread like pattern: we enjoy exclaiming "We have seen a Rainbow!".
Hence, if want to have a small portable rainbow of your own: simply use a protractor and hit the water with accurate angle :) :)
