ECAT Pre Engineering Physics Chapter 17 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 17 Physics of Solid

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Physics ECAT Pre Engineering Chapter 17 Physics of Solid

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Question # 1

The bands below the valence band are

Question # 2

Glass is an example of

Question # 3

The materials in which there are plenty of free electrons for electrical conduction are known as

Question # 4

When a stress changes the shape, it is called the

Question # 5

The solids are classified as:

Question # 6

Amorphous solids are also more like

Question # 7

The critical temperature of tin is

Question # 8

The size of the domain is such that they can contain

Question # 9

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

Question # 10

In a cubic crystal, All solids meet at:

Question # 11

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

Question # 12

The electrons in the outermost shell of an atom are called

Question # 13

Above the curie temperature, iron becomes

Question # 14

In a semi-conductor material, the total current is

Question # 15

In crystalline solids, atoms are held about their equilibrium positions depending upon the strength of:

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 The ratio of linear stress/linear strain is called as
A. Yong's modulus
B. Bulk modulus
C. Shear modulus
D. Modulus
2 Whenever a covalent bond is broken in an intrinsic semi-conductor
A. hole is created
B. an electron is created
C. an electron-hole pair is generated
D. all of them
3 The neighbours of every molecule in crystalline solids are arranged in
A. an irregular manner
B. a regular manner
C. any manner
D. none of them
4 Crystalline solids are in the form of:
A. Metals
B. Ionic Compounds
C. Ceramics
D. Both (A) and (B)
5 When a large number of atoms are brought close to one another to form a solid, each energy level of an isolated atom splits into sub-levels, called
A. energy bands
B. energy shells
C. states
D. all of them
6 Within each domain, the magnetic field of all the spinning electrons are
A. parallel
B. antiparallel
C. perpendicular
D. all of them
7 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
8 When a silicon crystal is doped with a pentavalent element, such an extrinsic semi-conductor is called
A. p-type semi-conductor
B. n-type semi-conductor
C. either of them
D. none of them
9 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
10 When a stress changes the shape, it is called the
A. compressional stress
B. tensile stress
C. shear stress
D. any one of them

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