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

Which of the following can become a good temporarily magnet

Question # 2

The domains are of macroscopic size of the order of

Question # 3

Which of the following can become a good permanent magnet

Question # 4

When a stress changes length, it is called the

Question # 5

Lead, copper and wrought iron are examples of

Question # 6

The bands below the valence band are

Question # 7

In a semi-conductor material, the total current is

Question # 8

In a cubic crystal, All solids meet at:

Question # 9

Tick the one which is not a crystalline solid:

Question # 10

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 # 11

There is a regular arrangement of molecules in a

Question # 12

The SI unit of stress is

Question # 13

The solids which has structure in-between order and disorder are called

Question # 14

Which of the following theory completely explain the three types of materials

Question # 15

Semi-conductor elements have atoms with

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 In a semi-conductor material, current flows due to
A. positive charge
B. negative charge
C. both of them
D. none of them
2 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
3 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
4 The crystalline structure of NaCI is
A. rectangular
B. hexagonal
C. tetrahedral
D. cubical
5 The conduction band in a solid
A. may be empty
B. cannot be empty
C. should be filed
D. all of them
6 When a stress changes the shape, it is called the
A. compressional stress
B. tensile stress
C. shear stress
D. any one of them
7 The modulus of elasticity can be written as
A. stress x strain
B. strain/stress
C. 1/2 x stress x strain
D. stress/strain
8 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
9 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
10 Crystalline solids are in the form of:
A. Metals
B. Ionic Compounds
C. Ceramics
D. Both (A) and (B)

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