Which of the following does not show anisotropy?
Correct answer: C. Glass
- A. Diamond
- B. Graphite
- C. Glass
- D. Rock salt
Explanation
Glass is an isotropic material, meaning its properties are the same in all directions. It lacks the ordered crystalline structure that leads to anisotropy in materials like diamond and graphite.Anisotropy refers to the property of a material exhibiting different physical properties along different axes.
This question appeared on the KMU Centralized Admission Test 2021 paper, which you can sit online with every answer explained.
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About Crystalline and Amorphous Solids
Crystalline solids have a regular, repeating lattice and a sharp melting point, while amorphous solids lack long-range order and soften over a temperature range. The topic covers unit cells, anisotropy, cleavage, symmetry and examples such as salts, metals, glass and plastics. Crystalline order must not be confused with mere hardness.
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