Find out, from Table, the medium having highest optical density. Also find the medium with lowest optical density.
Find out, from Table, the medium having highest optical density. Also find the medium with lowest optical density.
| Material medium | Refractive index | Material medium | Refractive index |
| Air | 1.0003 | Canada Balsam | 1.53 |
| Ice | 1.31 | ||
| Water | 1.33 | Rock salt | 1.54 |
| Alcohol | 1.36 | ||
| Kerosene | 1.44 | Carbon disulphide | 1.63 |
| Fused quartz | 1.46 | Dense flint glass | 1.65 |
| Turpentine oil | 1.47 | Ruby | 1.71 |
Highest optical density = Diamond
Lowest optical density = Air
Optical density of a medium is directly related with the refractive index of
that medium. A medium which has the highest refractive index will have the
highest optical density and vice-versa.
It can be observed from table 10.3 that diamond and air respectively have the
highest and lowest refractive index. Therefore, diamond has the highest optical
density and air has the lowest optical
density.
