Solid State Test

Directions For Questions

In hexagonal systems of crystals, a frequently encountered arrangement of atoms is described as a hexagonal prism. Here, the top and bottom of the cell are regular hexagons and three atoms are sandwiched in between them. A space-filling model of this structure called hexagonal close-packed (HCP), is constituted of a sphere on a flat surface surrounded in the same plane by six identical spheres as closely as possible. Three spheres are then placed over the first layer so that they touch each other and represent the second layer. Each one of these three spheres touches three spheres of the bottom layer. Finally, the second layer is covered with a third layer that is identical to the bottom layer in relative position. Assume radius of every sphere to be 'r'.

...view full instructions

Solid State Tes...

Question 1

Frenkel defect

Metal deficiency defect

Schottky defect

Vacancy defect

Question 2

$$30\%$$ and $$26\%$$

$$26\%$$ and $$32\%$$

$$32\%$$ and $$48\%$$

$$48\%$$ and $$26\%$$

Question 3

$$a=b\neq c$$ and $$\alpha =\beta =\gamma =90^o$$

$$a\neq b\neq c$$ and $$\alpha =\beta =\gamma =90^o$$

$$a\neq b\neq c$$ and $$\beta =\gamma =90^o\neq \alpha$$

$$a\neq b\neq c$$ and $$\alpha \neq \beta \neq \gamma \neq 90^o$$

Question 4

$$39.27\%$$

$$68.02\%$$

$$74.05\%$$

$$78.54\%$$

Question 5

$$74\%$$

$$47.6\%$$

$$32\%$$

$$26\%$$

Question 6

$$8$$

$$9$$

$$10$$

$$11$$

Question 7

$$C_2A_3$$

$$C_3A_2$$

$$C_3A_4$$

$$C_4A_3$$

Question 8

$$23\%$$

$$32\%$$

$$26\%$$

$$48\%$$

Question 9

All axial lengths and all axial angles are equal

All three axial lengths are equal

All three axial angles are equal

Two axial angles are equal but the third is different

Question 10

Solid substances in real sense

Liquids in real sense

Supercooled liquids

Substances with definite melting point

User

Question Analysis

Results Announcement on: coming Monday

Stay Tuned: We’ll update you on your result via email or SMS.