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

Tick the one which is not polymer solid:

Question # 2

Examples of polymeric substances are:

Question # 3

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

Question # 4

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

Question # 5

when the deformation produced in the material become permanent, this type of behaviour is called

Question # 6

In the stress-strain graph, stress is increased linearly with strain until a point is reached, this point is known as

Question # 7

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

Question # 8

The modulus of elasticity can be written as

Question # 9

The units of modulus of elasticity are

Question # 10

The magnetism produced by electrons within an atom can arise from

Question # 11

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

Question # 12

When the shear stress and shear stain are involved, then their ratio is called

Question # 13

There is a regular arrangement of molecules in a

Question # 14

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

Question # 15

The substance in which atoms are so oriented that the field produced by spin and orbital motion of the electrons might add up to zero,are called

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 The conduction band in a solid
A. may be empty
B. cannot be empty
C. should be filed
D. all of them
2 Which of the following can become a good permanent magnet
A. iron
B. steel
C. both of them
D. none of them
3 Which of the following can become a good temporarily magnet
A. iron
B. steel
C. both of them
D. none of them
4 The SI unit of stress is
A. N/m2
B. Nmc
C. dynes/m
D. N
5 Glass and high carbon steel are the examples of
A. brittle substances
B. ductile substances
C. plastic substances
D. elastic substances
6 The charged nucleus of an atom itself spins its magnetic field
A. equal to the field produced by orbital electrons
B. greater than the field produced by orbital electrons
C. much weaker than the field produced by orbital electrons
D. none of these
7 Polymers are the chemical combination of carbon with:
A. Nitrogen
B. Oxygen
C. Hydrogen
D. All of these
8 Within each domain, the magnetic field of all the spinning electrons are
A. parallel
B. antiparallel
C. perpendicular
D. all of them
9 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
10 Above the curie temperature, iron becomes
A. ferromagnetic
B. paramagnetic
C. diamagnetic
D. any one of them

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