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

In a semi-conductor material, the total current is

Question # 2

Under the elastic region, the deformation produced in the material, the deformation produced in the material will be

Question # 3

The substance in which atoms cooperate with each other in such a way so as to exhibit a strong magnetic effect, are called

Question # 4

The crystalline structure of NaCI is

Question # 5

The bands below the valence band are

Question # 6

The critical temperature of aluminium is

Question # 7

Each atom in a metal crystal vibrates about a fixed point with an amplitude that:

Question # 8

The maximum stress that a material can withstand, is known as

Question # 9

The charged nucleus of an atom itself spins its magnetic field

Question # 10

Glass is an example of

Question # 11

The curie temperature of iron is about

Question # 12

The modulus of elasticity can be written as

Question # 13

Examples of polymeric substances are:

Question # 14

In metallic crystals which of the following thing remains constant

Question # 15

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

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 The units of modulus of elasticity are
A. Nm-2
B. Nm
C. ms-1
D. Pascal
2 Which of the following theory completely explain the three types of materials
A. Bohr model of electron distribution
B. Rutherford atomic model
C. Pauli's exclusion principle
D. energy band theory
3 The SI unit of stress is
A. N/m2
B. Nmc
C. dynes/m
D. N
4 Synthetic materials fall into the category of
A. crystalline solids
B. amorphous
C. polymeric solids
D. all of them
5 The band above the valence band is called
A. high energy band
B. conduction band
C. empty band
D. none of them
6 The critical temperature of aluminium is
A. 1.18 K
B. 4.2 K
C. 3.72 K
D. 7.2 K
7 Every crystalline solid has
A. definite melting point
B. different melting points
C. may or may not be definite
D. none of them
8 A semi-conductor in its extremely pure form is known as
A. extrinsic semi-conductor
B. intrinsic semi-conductor
C. either of them
D. none of them
9 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
10 When the shear stress and shear stain are involved, then their ratio is called
A. Young's modulus
B. Bulk modulus
C. Shear modulus
D. all of them

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