BY Team Aakash Byjus
Let us study one of the interesting nature of light, refraction and see how we can visualise this phenomenon.
The deviation of light from its original path as it moves from one medium to another.
All light waves that are moving in the same direction at the same wavelength create a beam called Laser.
In the air, there are no small particles that a beam can reflect off. So we cannot see laser beams in the air.
Laser light contains only a single color, moves in a single direction and is very intense compared to white light.
The medium changes from air to water when the laser beam passes through the aquarium.
Since water is denser than the air, a laser beam after entering the water bends towards the normal line.
The air has no particles but the water has impurities. So, the velocity of light decreases as it enters the water medium.
As the laser beam enters the water medium, due to the presence of small particles in the water, it gets reflected towards our eyes.
Milk is one of the best known scattering agent. Mix it in the water where the laser beam is allowed. Due to the scattering of laser beam we can clearly see its path.
The laser beam also undergoes the total internal reflection at the boundary of the water medium. This holds the laser beam caught in the water medium.
This is how we trap the laser beam inside a water medium. Share this information with others.