InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
What is refractive index ? How it\'s Calculated |
|
Answer» A ray of light changes its direction when it enters from one medium to another medium. This happens because speed of light is different in different media. For example; the speed of light is 3 x 108 m/s (2.99x108 m/s) in vacuum and it is 2.98 x 108 m/s in air.Refractive Index is the extent of change of direction of light in a given pair of media. The refractive index is a relative value of speed of light in the given pair of media. Thus, to calculate the refractive Index the speed of light in two media is taken. It is a physical quantity.the relative speed of propagation of light in different media. |
|