what is refrlaction and refraction. how does it fall from mirror?

Asked by mayurgogoi09 | 21st Nov, 2015, 09:32: PM

Expert Answer:

Reflection: It is a phenomenon when light travelling in a medium falls on a surface and travels back in the same medium.
Example: When light travels from air and falls on a mirror, it turns back and travels back in air. This is reflection.
 
Refraction: It is a phenomenon when light travelling in a medium is incident on the boundary of the other medium, travels in the other medium.
In this, the speed of the light ray changes and hence it bends from its original path.
Example: When light is travelling in air and falls on a glass, then the light bends at the boundary of the air-glass interface and travels in glass. This is refraction.
 
From a mirror, only reflection occurs and refraction is not seen.

Answered by Romal Bhansali | 22nd Nov, 2015, 03:29: PM