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Why amorphous solids are isotropic?...

Why amorphous solids are isotropic?

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Because the arrangement of particles is irregular which averages out the arrangement in call direction uniformly.
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Why amorphous solids are called isotropic whereas crystalline solids are called anisotropic ?

An amorphous solid is :

A crystalline solid is anisotropic, whereas an amorphous solid is isotropic. Explain with reasons.

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Assertion: Crystalline solids are anisotropic. Reason: Crystalline solids are not as closely packed as amorphous solids.

(a) An element has atomic mass 93 g*mol^(-1) and density 11.5 g*cm^(-3) . If the edge length of its unit cell is 300 pm, identify the type of unit cell. (b) Write any two differences between amorphous solids and crystalline solids.

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PATHFINDER-THE SOLID STATE-QUESTION BANK
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  2. Give two examples of covalent solids.

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  3. What is the number of atoms per unit cell in a metallic crystal having...

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  4. What is the coordination number of each atom in HCP and CCP structures...

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  5. In an alloy of gold and cadmium if gold crystallizes in cubic structur...

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  6. If silver iodide crystallizes in zinc blende structure with I^- ions f...

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  7. A Cubic solid is made of two elements X and Y, atom Y are at the comer...

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  8. Name the non stoichiometric paint defect responsible for colour in alk...

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  9. Name the crystal defect which lowers the density of an ionic crystal.

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  10. What happens when a ferromagnetic substance is heated to high temperat...

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  11. Why is Frenkel defect not shown by alkali metal halides?

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  12. Crystal has face centred cubic structure, having atomic weight 6.023y ...

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  13. Crystal has face centred cubic structure, having atomic weight 6.023y ...

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  14. The composition of a sample of wustite is Fe(0.93)O1. What percentage ...

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  15. In a crystalline solid , anion B^- are arranged in a cubic close packi...

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  16. Potassium crystallizes in a body centred cubic lattice. Calculate the ...

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  17. Why the window glass of old buildings look milky?

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  18. Why is the window glass of the old building thick at the bottom ?

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  19. Copper has fcc structure. If its density is 8.92 g cm^-3, calculate it...

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  20. Calculate the efficiency in body centred cubic crystal.

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