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

There is a regular arrangement of molecules in a

Question # 2

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

Question # 3

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

Question # 4

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

Question # 5

The neighbours of every molecule in crystalline solids are arranged in

Question # 6

The cohesive forces between atoms, molecules or ions in crystalline solids maintain the strict

Question # 7

Which of the following theory completely explain the three types of materials

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

Above the curie temperature, iron becomes

Question # 10

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

Question # 11

Which of the following can become a good permanent magnet

Question # 12

In metallic crystals which of the following thing remains constant

Question # 13

Amorphous solids:

Question # 14

Tick the one which is not polymer solid:

Question # 15

On heating, glass gradually softens into a paste like before it becomes a very viscous liquid at almost

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 Recent studies of ferromagnetism have shown that there exists in ferromagnetic substances small regions called
A. tiny regions
B. domains
C. vectors
D. none of them
2 The vast majority of solids are in the form of
A. amorphous structure
B. polymeric structure
C. crystalline structure
D. all of them
3 When a stress changes the shape, it is called the
A. compressional stress
B. tensile stress
C. shear stress
D. any one of them
4 The size of the domain is such that they can contain
A. 102to 104atoms
B. 104 to 108atoms
C. 108to 1012atoms
D. 1012to 1016atoms
5 If the stress increased beyond the elastic limit of the material. the deformation produced in the material will be
A. permanent
B. temporary
C. either of them
D. none of them
6 A semi-conductor in its extremely pure form is known as
A. extrinsic semi-conductor
B. intrinsic semi-conductor
C. either of them
D. none of them
7 Amorphous solids:
A. Have definite melting points
B. Are called glassy solids
C. Have no definite melting point
D. Both (B) and (C)
8 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
9 Examples of polymeric substances are:
A. Plastic
B. Synthetic rubbers
C. Zirconia
D. All of these
10 The SI unit of strain is
A. N
B. Dynes
C. Pascal
D. Dimensionless

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