Question:

Which from following solids is isotropic?

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Amorphous solids (like glass) are isotropic, while crystalline solids are anisotropic.
Updated On: Apr 26, 2026
  • Glass
  • Ceramics
  • Graphite
  • Ice
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The Correct Option is A

Solution and Explanation

Concept:
Solids are classified as:
  • Crystalline solids → ordered structure → anisotropic (properties depend on direction)
  • Amorphous solids → irregular structure → isotropic (same properties in all directions)
Step 1: Understand isotropic nature. Isotropic substances have identical physical properties (like refractive index, conductivity, etc.) in all directions.
Step 2: Classify given solids.
  • Glass → amorphous solid → isotropic \checkmark
  • Ceramics → crystalline → anisotropic
  • Graphite → layered crystalline → anisotropic
  • Ice → crystalline → anisotropic

Step 3: Conclusion. \[ \text{Glass is isotropic in nature} \]
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