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

Tick the one which is not polymer solid:

Question # 2

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

Question # 3

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

Question # 4

When relatively simple molecules are chemically combined into massive molecules, the reaction is called:

Question # 5

The SI unit of stress is

Question # 6

The crystalline structure of NaCI is

Question # 7

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

Question # 8

Arsenic, antimony and phosphorus are the elements from

Question # 9

Which of the following can become a good temporarily magnet

Question # 10

Any superconductor with critical temperature above 77 K, is referred as

Question # 11

The size of the domain is such that they can contain

Question # 12

In the doping process, the ratio of the doping atoms to the semi conductor atom is

Question # 13

Glass and high carbon steel are the examples of

Question # 14

Lead, copper and wrought iron are examples of

Question # 15

If the stress increased beyond the elastic limit of the material. the deformation produced in the material will be

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 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
2 The critical temperature of tin is
A. 1.18 K
B. 4.2 K
C. 3.72 K
D. 7.2 K
3 The pattern of NaCl particles have a shape which is :
A. Cubic
B. Body centred cubic
C. Simple cubic
D. face centred
4 Within each domain, the magnetic field of all the spinning electrons are
A. parallel
B. antiparallel
C. perpendicular
D. all of them
5 The curie temperature of iron is about
A. 250°C
B. 500°C
C. 750°C
D. 1000°C
6 The arrangement or molecules or atoms in a crystalline solid can be studied by using:
A. Chemical methods
B. Neutrons
C. X-ray techniques
D. Copper atoms
7 The band above the valence band is called
A. high energy band
B. conduction band
C. empty band
D. none of them
8 Above the curie temperature, iron becomes
A. ferromagnetic
B. paramagnetic
C. diamagnetic
D. any one of them
9 Glass is an example of
A. crystalline solid
B. amorphous solid
C. polymeric solid
D. none of them
10 An ordinary glass gradually softens into a 'paste -like' state before it becomes a very viscous liquid. It happens almost at:
A. 800oC
B. 500oC
C. 300oC
D. 100oC

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