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

Polymeric solids have

Question # 2

Any superconductor with critical temperature above 77 K, is referred as

Question # 3

The magnetism produced by electrons within an atom can arise from

Question # 4

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

Question # 5

Semi-conductor elements have atoms with

Question # 6

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

Question # 7

The band above the valence band is called

Question # 8

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

Question # 9

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

Question # 10

The size of the domain is such that they can contain

Question # 11

The whole structure obtained by the repetition of unit cells is called:

Question # 12

The molecules or ions in a crystalline solids are

Question # 13

Every crystalline solid has

Question # 14

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

Question # 15

If the stress increased beyond the elastic limit of the material. the deformation produced in the material will be

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 There are some whose resistivity becomes zero below a certain temperature, called
A. absolute zero
B. 0°C
C. critical temperature
D. lower fixed point
2 The electrons in the outermost shell of an atom are called
A. core electrons
B. valence electrons
C. high energy electrons
D. none of them
3 The electrons occupying the conduction band are known as
A. conduction electrons
B. free electrons
C. both of them
D. none of them
4 The number of different crystals systems based on the geometrical arrangement of their atoms and the resultant geometrical structure are
A. 5
B. 7
C. 9
D. 14
5 The temperature at which the vibrations become so great that structure of the Crystal breaks up, is called:
A. Critical temparature
B. Temperature of vaporization
C. Melting point
D. Both (A) and (C)
6 Within each domain, the magnetic field of all the spinning electrons are
A. parallel
B. antiparallel
C. perpendicular
D. all of them
7 The charged nucleus of an atom itself spins its magnetic field
A. equal to the field produced by orbital electrons
B. greater than the field produced by orbital electrons
C. much weaker than the field produced by orbital electrons
D. none of these
8 Each atom in a metal crystal vibrates about a fixed point with an amplitude that:
A. Decrease the rise in temprature
B. Is not affected by rise in temprature
C. Increase with rise in temprature
D. Both (B) and (C)
9 The arrangement or molecules or atoms in a crystalline solid can be studied by using:
A. Chemical methods
B. Neutrons
C. X-ray techniques
D. Copper atoms
10 Synthetic materials fall into the category of
A. crystalline solids
B. amorphous
C. polymeric solids
D. all of them

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