1. Amorphous solids have 2. The axial relationship of a hexagonal crystal system is given as a = b = c. (True or False). 3. The smallest angle in which the triangle can be rotate to back original position is structure. ------- it's ----- ---
1. Amorphous solids have 2. The axial relationship of a hexagonal crystal system is given as a = b = c. (True or False). 3. The smallest angle in which the triangle can be rotate to back original position is structure. ------- it's ----- ---
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Transcribed Image Text:1. Amorphous solids have
2. The axial relationship of a hexagonal crystal system is given as a =
b = c. (True or False).
3. The smallest angle in which the triangle can be rotate to back
original position is
4. What is the resultant image formed for very fine grains in X-Ray
photography technique...(1) Few clear spots, (2) Large number
of spots, (3) Continuous rings, (4) Irregular spots.
5. The advantages of ( electron diffraction) is -
6. There are
structure.
-------
it's
----- -.
---- --.
symmetry rotation operation of circle.
7. The principle condition of braggs law to study crystal structure is -
---- --
-----.
8. Characteristic radiation is emitted from the target as a consequence
of electron transition from any one (L, M,....) shells to
(True or False).
9. In
(K) shell.
method crystals of material crushing in small crystals
--- ---
grains distributed randomly in each directions.
10. The percentage of empty space in a body centred cubic
arrangement is (68). (True or False).
11.The correct order of the packing efficiency in different types of
unit cells is
(a) fcc < bcc < simple cubic, (b) fcc > bcc >
---- --
simple cubic, (c) fcc < bcc > simple cubic, (d) bcc < fcc > simple
cubic.
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