ECAT Pre General Science Chapter 17 online mcq test with answers for Physics chapter 17 (Physics of Solids)

ECAT Pre General Science Physics Chapter 17 Physics of Solids Online Test

Try the ECAT Pre General Science Physics Chapter 17 Physics of Solids Online Test.

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ECAT Pre General Science Physics Chapter 17 Physics of Solids Online Test

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Question # 1

Each atom in a metal crystal vibrates about a fixed point with an amplitude that:

Decrease the rise in temprature A
Is not affected by rise in temprature B
Increase with rise in temprature C
Both (B) and (C) D
None of these E

Question # 2

The crystalline structure of NaCI is

rectangular A
hexagonal B
tetrahedral C
cubical D

Question # 3

The force which maintain the strict long-range order between atoms of a crystalline solid is the:

Nuclear force A
Cohesive force B
Adhesive force C
Coulomb force D
None of these E

Question # 4

The solids are classified as:

Metals A
Crystalline B
Amorphous C
Polymeric D
All except (A) E

Question # 5

Tick the one which is not a crystalline solid:

Zirconia A
Glass B
Copper C
Ceramic solid D
An ionic compound E

Question # 6

The electrons in the outermost shell of an atom are called

core electrons A
valence electrons B
high energy electrons C
none of them D

Question # 7

Amorphous solids:

Have definite melting points A
Are called glassy solids B
Have no definite melting point C
Both (B) and (C) D
Both (A) and (C) E

Question # 8

In a semi-conductor material, current flows due to

positive charge A
negative charge B
both of them C
none of them D

Question # 9

Lead, copper and wrought iron are examples of

brittle substances A
ductile substances B
plastic substances C
elastic substances D

Question # 10

when the deformation produced in the material become permanent, this type of behaviour is called

proportionality A
elasticity B
plasticity C
none of them D

Question # 11

When a silicon crystal is doped with a pentavalent element, then the atom of the pentavalent element is known as

acceptor A
donor B
either of them C
none of them D

Question # 12

The number of different crystals systems based on the geometrical arrangement of their atoms and the resultant geometrical structure are

5 A
7 B
9 C
14 D

Question # 13

In the doping process, the ratio of the doping atoms to the semi conductor atom is

1 to 10 A
1 to 10³ B
1 to 10⁶ C
1 to 10⁹ D

Question # 14

A semi-conductor in its extremely pure form is known as

extrinsic semi-conductor A
intrinsic semi-conductor B
either of them C
none of them D

Question # 15

An ordinary glass gradually softens into a 'paste -like' state before it becomes a very viscous liquid. It happens almost at:

800^oC A
500^oC B
300^oC C
100^oC D
None of these E

Question # 16

Amorphous solids are also more like

crystalline solids A
gases B
liquids C
any one of them D

Question # 17

The units of modulus of elasticity are

Nm^-2 A
Nm B
ms^-1 C
Pascal D

Question # 18

The substances in which, atom are so oriented that their fields support each other and the atoms behave like tiny magnets, are called

diamagnetic substances A
ferromagnetic substances B
paramagnetic substances C
all of them D

Question # 19

Crystalline solids are in the form of:

Metals A
Ionic Compounds B
Ceramics C
Both (A) and (B) D
All of these E

Question # 20

When a silicon crystal is doped with a pentavalent element, such an extrinsic semi-conductor is called

p-type semi-conductor A
n-type semi-conductor B
either of them C
none of them D

Question # 21

Recent studies of ferromagnetism have shown that there exists in ferromagnetic substances small regions called

tiny regions A
domains B
vectors C
none of them D

Question # 22

The band above the valence band is called

high energy band A
conduction band B
empty band C
none of them D

Question # 23

A structure of polymeric solid is:

An ordered structure A
A disordered structure B
Intermediate between order and disorder C
Any of these D
None of these E

Question # 24

The ability of the body to return to its original shape is called

deformation A
stretching B
compressing C
elasticity D

Question # 25

In crystalline solids, atoms are held about their equilibrium positions depending upon the strength of:

Adhesive force A
Nuclear forces B
Inter atomic cohesive force C
Electromagnetic force D
None of these E

Question # 26

Glass and high carbon steel are the examples of

brittle substances A
ductile substances B
plastic substances C
elastic substances D

Question # 27

There is a regular arrangement of molecules in a

amorphous solids A
polymeric solids B
crystalline solids C
none of them D

Question # 28

The pattern of crystalline solid is:

One dimesional A
Two dimensional B
Three dimensional C
None of these D
Either (A) or (B) E

Question # 29

In a cubic crystal, All solids meet at:

60^o A
90^o B
109^o C
30^o D
10^o E

Question # 30

Which of the following can become a good temporarily magnet

iron A
steel B
both of them C
none of them D

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ECAT Pre General Science Physics Chapter 17 MCQ Test With Answer for Physics chapter 17 (Physics of Solids)

ECAT Pre General Science Physics Chapter 17 Test

ECAT Pre General Science Physics Chapter 17 Physics of Solids Online Test

ECAT Pre General Science Physics Chapter 17 Physics of Solids Online Test

Each atom in a metal crystal vibrates about a fixed point with an amplitude that:

The crystalline structure of NaCI is

The force which maintain the strict long-range order between atoms of a crystalline solid is the:

The solids are classified as:

Tick the one which is not a crystalline solid:

The electrons in the outermost shell of an atom are called

Amorphous solids:

In a semi-conductor material, current flows due to

Lead, copper and wrought iron are examples of

when the deformation produced in the material become permanent, this type of behaviour is called

When a silicon crystal is doped with a pentavalent element, then the atom of the pentavalent element is known as

The number of different crystals systems based on the geometrical arrangement of their atoms and the resultant geometrical structure are

In the doping process, the ratio of the doping atoms to the semi conductor atom is

A semi-conductor in its extremely pure form is known as

An ordinary glass gradually softens into a 'paste -like' state before it becomes a very viscous liquid. It happens almost at:

Amorphous solids are also more like

The units of modulus of elasticity are

The substances in which, atom are so oriented that their fields support each other and the atoms behave like tiny magnets, are called

Crystalline solids are in the form of:

When a silicon crystal is doped with a pentavalent element, such an extrinsic semi-conductor is called

Recent studies of ferromagnetism have shown that there exists in ferromagnetic substances small regions called

The band above the valence band is called

A structure of polymeric solid is:

The ability of the body to return to its original shape is called

In crystalline solids, atoms are held about their equilibrium positions depending upon the strength of:

Glass and high carbon steel are the examples of

There is a regular arrangement of molecules in a

The pattern of crystalline solid is:

In a cubic crystal, All solids meet at:

Which of the following can become a good temporarily magnet

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