ECAT Pre Computer Science Chapter 17 MCQ Test With Answer

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 band above the valence band is called

Question # 2

The neighbours of every molecule in crystalline solids are arranged in

Question # 3

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

Question # 4

Tick the one which is not a crystalline solid:

Question # 5

Tick the one which is not polymer solid:

Question # 6

Above the curie temperature, iron becomes

Question # 7

when the deformation produced in the material become permanent, this type of behaviour is called

Question # 8

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

Question # 9

Crystalline solids are in the form of:

Question # 10

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

Question # 11

The vast majority of solids are in the form of

Question # 12

Glass is an example of

Question # 13

Synthetic materials fall into the category of

Question # 14

Lead, copper and wrought iron are examples of

Question # 15

The valence band of an atom in a solid

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 Polymeric solids have
A. low specific gravity
B. high specific gravity
C. either of them
D. none of them
2 Recently a complex crystalline structure known as Yetrium Barium Copper Oxide have been reported to become superconductor at
A. 125 K
B. 25 K
C. 263 K
D. 163 K
3 The molecules or ions in a crystalline solids are
A. static
B. not static
C. randomly moving
D. all of them
4 In the doping process, the ratio of the doping atoms to the semi conductor atom is
A. 1 to 10
B. 1 to 103
C. 1 to 106
D. 1 to 109
5 The bonding between the semi-conductor materials is
A. covalent
B. ionic
C. either of them
D. none of them
6 An atom in which there is a resultant magnetic field, behaves like a tiny magnet and is called as
A. magnetic
B. magnetic dipole
C. magnetic monopole
D. none of them
7 When a silicon crystal is doped with a pentavalent element, then the atom of the pentavalent element is known as
A. acceptor
B. donor
C. either of them
D. none of them
8 The doped semi-conductor materials are known as
A. intrinsic semi-conductor
B. extrinsic semi-conductor
C. either of them
D. none of them
9 Glass is an example of
A. crystalline solid
B. amorphous solid
C. polymeric solid
D. none of them
10 The ratio of linear stress/linear strain is called as
A. Yong's modulus
B. Bulk modulus
C. Shear modulus
D. Modulus

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