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Some of the glass objects recovered from...

Some of the glass objects recovered from ancient monuments look milky instead of being transparent.

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A double convex lens made of glass of refractive index 1.5 has both radii of curvature of magnitude 20 cm. An object 2 cm high is placed at 10 cm from the lens. Find the position, nature and size of the Image.

R G PUBLICATION-THE SOLID STATE-EXERCISE
  1. What type of defect can arise when a solid heated?

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  2. What are p-type semi-conductor?

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  3. Some of the glass objects recovered from ancient monuments look milky ...

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  4. How solids are catagorised? Given one example of each.

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  5. What is crystal lattice? Write two characteristics of crystal lattice.

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  6. A compound is formed by two types of ions viz. A (as cation) & B (as a...

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  7. Show that in ccp and hcp structure the packing efficiency is 74%.

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  8. Analysis shows that nickel oxide has the formula Ni(0.98)O(1.00). What...

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  9. Explain the phenomenon "When molten NaCl is crystallised with SrCl2".

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  10. In terms of band theory, what is the difference between a conductor an...

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  11. Ferric oxide crystallises in a hexagonal close-packed array of oxide i...

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  12. Name and write two characteristics of the following two crystal defect...

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  13. An element with molar mass 2.7xx10^-2 kg mol^-1 forms a cubic unit cel...

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  14. An element crystallizes in a fcc unit cell with an edge length 200pm. ...

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  15. Aluminium crystallises in a cubic close-packed structure. Its metallic...

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  16. A metal crystallizes in bcc unit cell. If the edge of the unit cell is...

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  17. Why a salt of zinc becomes yellow on heating? Explain.

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  18. The density of Copper metal is 8.95g//cm^3. If the radius of Copper at...

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  19. A metal crystallizes in a fcc unit cell with edge length equal to 0.5n...

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  20. An element has a bcc structure with a cell edge of 299pm. The density ...

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