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IMPORTANT
Earn 100

The inter-planar spacing between the 221 planes of a cubic lattice of length 450 pm is:

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Important Questions on Solid State

HARD
KVPY Aptitude Test - Stream SX
IMPORTANT
If the angle of incidence of X-ray of wavelength 3 Ao, which produces a second-order diffracted beam from the 100 planes in a simple cubic lattice with interlayer spacing a=6 Ao is 30°, the angle of incidence that produces a first-order diffracted beam from the 200 planes is:
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IMPORTANT
An ionic compound is formed between a metal M and a non-metal Y. If M occupies half the octahedral voids in the cubic close-packed arrangement formed by Y, the chemical formula of the ionic compound is
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IMPORTANT
In a cubic close packed structure, the fractional contributions of an atom at the corner and at the face in the unit cell are, respectively:
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IMPORTANT
Schottky defect in a crystal arises due to
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IMPORTANT
The packing efficiency of the face centred cubic fcc, body centred cubic bcc and simple/primitive cubic pc lattices follows the order
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IMPORTANT
A unit cell of calcium fluoride has four calcium ions. The number of fluoride ions in the unit is
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IMPORTANT
Copper (atomic mass =63.5) crystallizes in FCC lattice and has density 8.93 g.cm-3. The radius of copper atom is closest to
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IMPORTANT
A mineral consists of a cubic close-packed structure formed by O2- ions, where half the octahedral voids are occupied by Al3+ and one-eighth of the tetrahedral voids are occupied by Mn2+. The chemical formula of the