GEOLOGY

Detailed explanation-1: -In an isotropic material, for example a cubic crystal, or an amorphous material, light vibrates equally easily in all directions. These materials do not affect polarised light.

Detailed explanation-2: -Light entering an isotropic crystal is refracted at a constant angle and passes through the crystal at a single velocity without being polarized by interaction with the electronic components of the crystalline lattice.

Detailed explanation-3: -Minerals that are isotropic include halides such as fluorite and halite, some of the oxides such as the spinels, and some silicates including members of the garnet group and the sodalite group of feldspathoids.

Detailed explanation-4: -When polarized light is passed through the muscle fibre, the light rays are refracted in different directions. Light band is called an isotropic band because it is isotropic to polarized light. In this case, when polarized light is passed through the muscle fibre, light rays are refracted at the same angle.