Question

Which of the following will show anisotropy?

• A. Rubber
• B. Paper
• C. Iodine
• D. Wood

Answer 1

The correct option is C Iodine

Anisotropy is the property of a substance to exhibit variations in their properties such as refractive index along different molecular axes. This arises due to the difference in the structural composition of crystal along different directions in the crystal. In crystalline solids, a long-range order of molecules/atoms exist, so they are anisotropic in nature.

In amorphous solids, no long-range order exist so the given properties such as electrical conductivity, thermal conductivity, refractive index are identical in all directions and they are isotropic in nature.