ECAT Pre Engineering Physics Chapter 17 MCQ Test With Answer

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

Try The 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 pattern of crystalline solid is:

Question # 2

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

Question # 3

In a semi-conductor material, current flows due to

Question # 4

The valence band of an atom in a solid

Question # 5

The electrons in the outermost shell of an atom are called

Question # 6

Tick the one which is not polymer solid:

Question # 7

Arsenic, antimony and phosphorus are the elements from

Question # 8

The electrons occupying the conduction band are known as

Question # 9

In case of the three dimensional deformation, when volume is involved, the ratio of applied stress to volumetric strain is called

Question # 10

Whenever a covalent bond is broken in an intrinsic semi-conductor

Question # 11

The materials in which valence electrons are bound very tightly to their atoms and are not free, are known as

Question # 12

Glass is an example of

Question # 13

The vast majority of solids are in the form of

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 In a soft iron, domains are
A. easily oriented along external field and do not return to original random positions
B. easily oriented along external field and readily returns to originally random position
C. do no oriented along external field and also do not returns to originally random position
D. none of them
2 Semi-conductor elements have atoms with
A. 2 valence electrons
B. 3 valence electrons
C. 4 valence electrons
D. 5 valence electrons
3 Under the elastic region, the deformation produced in the material, the deformation produced in the material will be
A. permanent
B. temporary
C. either of them
D. none of them
4 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
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 In the stress-strain graph, stress is increased linearly with strain until a point is reached, this point is known as
A. plastic limit
B. plastic deformation
C. proportional limit
D. elastic behaviour
7 The critical temperature of mercury is
A. 1.18 K
B. 4.2 K
C. 3.72 K
D. 7.2 K
8 Every crystalline solid has
A. definite melting point
B. different melting points
C. may or may not be definite
D. none of them
9 When small number of atoms from some other suitable element is added to the semi-conductor material, then this process is known as
A. impurification
B. adding
C. doping
D. extrinsivity
10 Electrons of an isolated atom are bound to the nucleus, and
A. can only have distinct energy level
B. can only have same energy level
C. may or may not have distinct energy levels
D. none of these

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