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

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

Question # 2

Arsenic, antimony and phosphorus are the elements from

Question # 3

The bonding between the semi-conductor materials is

Question # 4

On heating, glass gradually softens into a paste like before it becomes a very viscous liquid at almost

Question # 5

Tick the one which is not polymer solid:

Question # 6

The size of the domain is such that they can contain

Question # 7

A semi-conductor in its extremely pure form is known as

Question # 8

Every crystalline solid has

Question # 9

The word amorphous means:

Question # 10

Glass and high carbon steel are the examples of

Question # 11

An ordinary glass gradually softens into a 'paste -like' state before it becomes a very viscous liquid. It happens almost at:

Question # 12

The cohesive forces between atoms, molecules or ions in crystalline solids maintain the strict

Question # 13

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

Question # 14

An atom in which there is a resultant magnetic field, behaves like a tiny magnet and is called as

Question # 15

Polymers are the chemical combination of carbon with:

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 The ratio of shearing stress/shearing strain is called as
A. Modulus
B. Pascal modulus
C. Hooker's modulus
D. Shear modulus
2 Any superconductor with critical temperature above 77 K, is referred as
A. low temperature superconductor
B. high temperature superconductor
C. very low temperature superconductor
D. none of them
3 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
4 The force applied on unit area to produce any change in the shape, volume or length of a body is known as
A. strain
B. elasticity
C. stretching
D. stress
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 A structure of polymeric solid is:
A. An ordered structure
B. A disordered structure
C. Intermediate between order and disorder
D. Any of these
7 The curie temperature of iron is about
A. 250°C
B. 500°C
C. 750°C
D. 1000°C
8 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
9 The temperature at which the vibrations become so great that structure of the Crystal breaks up, is called:
A. Critical temparature
B. Temperature of vaporization
C. Melting point
D. Both (A) and (C)
10 The transition from solid to liquid is actually from:
A. Order to disorder
B. Disorder to order
C. Order to order
D. Disorder to disorder

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