ECAT Pre Computer Science Chapter 17 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 17 Physics of Solids

Try The MCQ's Test For ECAT Physics Chapter 17 Physics of Solids

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ECAT Physics Chapter 17 Physics of Solids

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Question # 1

The results of mechanical tests are usually expressed in terms of

Question # 2

Glass is an example of

Question # 3

The materials in which valence electrons are bound very tightly to their atoms and are not free, are known as

Question # 4

In a semi-conductor material, current flows due to

Question # 5

The bonding between the semi-conductor materials is

Question # 6

Examples of polymeric substances are:

Question # 7

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

Question # 8

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

Question # 9

In a semi-conductor material, the total current is

Question # 10

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

Question # 11

Under the elastic region, the deformation produced in the material, the deformation produced in the material will be

Question # 12

The ratio of shearing stress/shearing strain is called as

Question # 13

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

Question # 14

Polymers are the chemical combination of carbon with:

Question # 15

The transition from solid state to liquid state is:

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 Tick the one which is not polymer solid:
A. Zirconia
B. Polythene
C. Nylon
D. Synthetic rubber
2 The substance in which atoms cooperate with each other in such a way so as to exhibit a strong magnetic effect, are called
A. diamagnetic substances
B. ferromagnetic substances
C. paramagnetic substances
D. all of them
3 The vast majority of solids are in the form of
A. amorphous structure
B. polymeric structure
C. crystalline structure
D. all of them
4 The conduction band in a solid
A. may be empty
B. cannot be empty
C. should be filed
D. all of them
5 Amorphous solids:
A. Have definite melting points
B. Are called glassy solids
C. Have no definite melting point
D. Both (B) and (C)
6 The pattern of NaCl particles have a shape which is :
A. Cubic
B. Body centred cubic
C. Simple cubic
D. face centred
7 The SI unit of stress is
A. N/m2
B. Nmc
C. dynes/m
D. N
8 The substance in which atoms are so oriented that the field produced by spin and orbital motion of the electrons might add up to zero,are called
A. diamagnetic substances
B. ferromagnetic substances
C. paramagnetic substances
D. all of them
9 Within each domain, the magnetic field of all the spinning electrons are
A. parallel
B. antiparallel
C. perpendicular
D. all of them
10 The doped semi-conductor materials are known as
A. intrinsic semi-conductor
B. extrinsic semi-conductor
C. either of them
D. none of them

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