Which of the following solids show anisotropy___________________?
Correct answer: D. None of the above
- A. Plastic
- B. Glass
- C. Rubber
- D. None of the above
Explanation
Anisotropy means that a property has different values in different directions, and this is a characteristic of ordered crystalline solids. Plastic, glass and rubber are generally amorphous materials and therefore show isotropy rather than anisotropy. The likely mistake is choosing glass because it is a solid, but its disordered structure prevents directional variation in ordinary properties.
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About Crystalline Solids
Crystalline solids contain particles arranged in a regular repeating lattice described by a unit cell. Their study includes coordination number, packing efficiency, density, anisotropy, cleavage, polymorphism and common crystal systems, along with ionic, molecular, covalent network and metallic crystals. Crystalline order differs from the random arrangement of amorphous solids.
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