Glass is amorphous solids and have a tendency to flow, though very slowly. Therefore, these are called pseudo solids or super cooled liquids .
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Why do solids have a definite volume?
Refractive index of a solid is observed to have the same value along all directions. Comment on the nature of this solid. Would it show clevage property?
Classify the following as amorphous or crystalline solids: Polyurethane, naphthalene, benzoic acid, teflon, potassium nitrate, cellophane, polyvinyl chloride, fibre glass, copper.
