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

Question # 1

Glass is an example of

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

Question # 2

When relatively simple molecules are chemically combined into massive molecules, the reaction is called:

Fission reaction A
Fusion reaction B
Polymerization C
Any of these D
None of these E

Question # 3

The temperature at which the vibrations become so great that structure of the Crystal breaks up, is called:

Critical temparature A
Temperature of vaporization B
Melting point C
Both (A) and (C) D
Both (A) and (B) E

Question # 4

The SI unit of strain is

N A
Dynes B
Pascal C
Dimensionless D

Question # 5

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 # 6

The neighbours of every molecule in crystalline solids are arranged in

an irregular manner A
a regular manner B
any manner C
none of them D

Question # 7

Every crystalline solid has

definite melting point A
different melting points B
may or may not be definite C
none of them D

Question # 8

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 # 9

In a semi-conductor material, the total current is

only the +ve current A
only the electronic current B
sum of +ve and electronic current C
all of them D

Question # 10

The bonding between the semi-conductor materials is

covalent A
ionic B
either of them C
none of them D

Question # 11

The band above the valence band is called

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

Question # 12

The solids which has structure in-between order and disorder are called

amorphous solids A
polymeric solids B
crystalline solids C
all of them D

Question # 13

When the shear stress and shear stain are involved, then their ratio is called

Young's modulus A
Bulk modulus B
Shear modulus C
all of them D

Question # 14

The force applied on unit area to produce any change in the shape, volume or length of a body is known as

strain A
elasticity B
stretching C
stress D

Question # 15

In the stress-strain graph, stress is increased linearly with strain until a point is reached, this point is known as

plastic limit A
plastic deformation B
proportional limit C
elastic behaviour D

Question # 16

Ferromagnetic substances lose their magnetism when heated above a certain temperature, known as

critical temperature A
curie temperature B
high temperature C
fixed temperature D

Question # 17

The substance in which atoms cooperate with each other in such a way so as to exhibit a strong magnetic effect, are called

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

Question # 18

The critical temperature of aluminium is

1.18 K A
4.2 K B
3.72 K C
7.2 K D

Question # 19

The magnetism produced by electrons within an atom can arise from

electrons orbiting the nucleus A
electrons posses a spin B
both motions C
none of these motions D

Question # 20

Substances which break just after the elastic limit is reached, are known as

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

Question # 21

The critical temperature of tin is

1.18 K A
4.2 K B
3.72 K C
7.2 K D

Question # 22

The transition from solid state to liquid state is:

Abrupt A
Slow B
Continous C
Discontinous D
Both (A) and (D) E

Question # 23

When a stress changes the shape, it is called the

compressional stress A
tensile stress B
shear stress C
any one of them D

Question # 24

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 # 25

Tick the one which is not polymer solid:

Zirconia A
Polythene B
Nylon C
Synthetic rubber D
None of these E

Question # 26

A unit cell is smallest basic structure which is:

One dimensional A
Two dimensional B
Three dimensional C
Four dimensional D
None of these E

Question # 27

Amorphous solids are also called as

crystalline solids A
polymeric solids B
glassy solids C
any one of them D

Question # 28

The ratio of shearing stress/shearing strain is called as

Modulus A
Pascal modulus B
Hooker's modulus C
Shear modulus D

Question # 29

When small number of atoms from some other suitable element is added to the semi-conductor material, then this process is known as

impurification A
adding B
doping C
extrinsivity D

Question # 30

Experiments revealed that the ratio of the stress to the strain is a constant value for

different material A
all materials B
a given material C
all of them D

Sr.#	Question	Answer
1	Experiments revealed that the ratio of the stress to the strain is a constant value for	A. different material B. all materials C. a given material D. all of them
2	When a stress changes length, it is called the	A. compressional stress B. tensile stress C. shear stress D. any one of them
3	In a semi-conductor material, current flows due to	A. positive charge B. negative charge C. both of them D. none of them
4	when the deformation produced in the material become permanent, this type of behaviour is called	A. proportionality B. elasticity C. plasticity D. none of them
5	The crystalline structure of NaCI is	A. rectangular B. hexagonal C. tetrahedral D. cubical
6	The solids which has structure in-between order and disorder are called	A. amorphous solids B. polymeric solids C. crystalline solids D. all of them
7	The neighbours of every molecule in crystalline solids are arranged in	A. an irregular manner B. a regular manner C. any manner D. none of them
8	The band above the valence band is called	A. high energy band B. conduction band C. empty band D. none of them
9	Amorphous solids are also more like	A. crystalline solids B. gases C. liquids D. any one of them
10	In the stress-strain graph, stress is increased linearly with strain until a point is reached, this point is known as	A. plastic limit B. plastic deformation C. proportional limit D. elastic behaviour

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ECAT Pre General Science Physics Chapter 17 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 17 Physics of Solids

ECAT Pre General Science Physics Chapter 17 Physics of Solids