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

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

Question # 2

Recently a complex crystalline structure known as Yetrium Barium Copper Oxide have been reported to become superconductor at

Question # 3

In a soft iron, domains are

Question # 4

The size of the domain is such that they can contain

Question # 5

The measure of the deformation in a solid when stress is applied to its is called

Question # 6

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

Question # 7

When a stress changes the shape, it is called the

Question # 8

A unit cell is smallest basic structure which is:

Question # 9

There are some whose resistivity becomes zero below a certain temperature, called

Question # 10

Electrons of an isolated atom are bound to the nucleus, and

Question # 11

Above the curie temperature, iron becomes

Question # 12

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

Question # 13

The domains are of macroscopic size of the order of

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 A structure of polymeric solid is:
A. An ordered structure
B. A disordered structure
C. Intermediate between order and disorder
D. Any of these
2 The ratio of linear stress/linear strain is called as
A. Yong's modulus
B. Bulk modulus
C. Shear modulus
D. Modulus
3 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
4 Lead, copper and wrought iron are examples of
A. brittle substances
B. ductile substances
C. plastic substances
D. elastic substances
5 The units of modulus of elasticity are
A. Nm-2
B. Nm
C. ms-1
D. Pascal
6 The transition from solid to liquid is actually from:
A. Order to disorder
B. Disorder to order
C. Order to order
D. Disorder to disorder
7 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
8 Semi-conductor elements have atoms with
A. 2 valence electrons
B. 3 valence electrons
C. 4 valence electrons
D. 5 valence electrons
9 Examples of polymeric substances are:
A. Plastic
B. Synthetic rubbers
C. Zirconia
D. All of these
10 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

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