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

Lead, copper and wrought iron are examples of

Question # 2

Polymers are the chemical combination of carbon with:

Question # 3

Tick the one which is not a crystalline solid:

Question # 4

In a soft iron, domains are

Question # 5

The conduction band in a solid

Question # 6

The results of mechanical tests are usually expressed in terms of

Question # 7

The modulus of elasticity can be written as

Question # 8

The transition from solid to liquid is actually from:

Question # 9

The amplitude of oscillation of each atom in a metallic crystal rises with the

Question # 10

The substances which break just after the elastic limit is reached, are known as

Question # 11

A unit cell is smallest basic structure which is:

Question # 12

The ratio of linear stress/linear strain is called as

Question # 13

When a stress changes length, it is called the

Question # 14

The electrons occupying the conduction band are known as

Question # 15

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

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 Examples of crystalline solids are:
A. Cooper
B. NaCl
C. Zirconia
D. Both (A) and (B)
2 The size of the domain is such that they can contain
A. 102to 104atoms
B. 104 to 108atoms
C. 108to 1012atoms
D. 1012to 1016atoms
3 On heating, glass gradually softens into a paste like before it becomes a very viscous liquid at almost
A. 600°C
B. 7600°C
C. 800°C
D. 900°C
4 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
5 Amorphous solids:
A. Have definite melting points
B. Are called glassy solids
C. Have no definite melting point
D. Both (B) and (C)
6 Tick the one which is not a crystalline solid:
A. Zirconia
B. Glass
C. Copper
D. Ceramic solid
7 The materials in which there are plenty of free electrons for electrical conduction are known as
A. conductors
B. insulators
C. semi-conductors
D. all of them
8 Which of the following can become a good temporarily magnet
A. iron
B. steel
C. both of them
D. none of them
9 Experiments revealed that the ratio of the stress to the strain is a constant value for
A. different material
B. all materials
C. a given material
D. all of them
10 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

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