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?
Refractive index of a solid which have the same value along all directions are isotropic in nature. It would not show cleavage property.
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Why are solids rigid?
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Why is glass considred a super-cooled liquid?
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Classify the following as amorphous or crystalline solids: Polyurethane, naphthalene, benzoic acid, teflon, potassium nitrate, cellophane, polyvinyl chloride, fibre glass, copper.
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What type of solids are electrical conductors, malleable and ductile?
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Classify the following solids in different categories based on the nature of intermolecular forces operating in them: Potassium sulphate, tin, benzene, urea, ammonia, water, zinc sulphate, graphite, rubidium, argon, silicon carbide.
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Solid A is a very hard, electrical insulator in solid as well as in molten state and melts at extremely high temperature. What type of solid is it?
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Why do solids have a definite volume?
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Give the significance of a 'lattice point'.
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Ionic solids conduct electricity in liquid state but not in solid state. Explain.