ECAT Pre Computer Science Chapter 17 MCQ Test With Answer

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

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

Question # 3

Above the curie temperature, iron becomes

Question # 4

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

Question # 5

The first super conductor was discovered in

Question # 6

Synthetic materials fall into the category of

Question # 7

A structure of polymeric solid is:

Question # 8

The ratio of linear stress/linear strain is called as

Question # 9

Each atom in metal crystal:

Question # 10

The substances in which, atom are so oriented that their fields support each other and the atoms behave like tiny magnets, are called

Question # 11

The electrons in the outermost shell of an atom are called

Question # 12

Experiments revealed that the ratio of the stress to the strain is a constant value for

Question # 13

When a stress changes the shape, it is called the

Question # 14

The units of modulus of elasticity are

Question # 15

Zirconia is classified as:

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 The first super conductor was discovered in
A. 1811
B. 1890
C. 1901
D. 1911
2 Within each domain, the magnetic field of all the spinning electrons are
A. parallel
B. antiparallel
C. perpendicular
D. all of them
3 When a stress changes the shape, it is called the
A. compressional stress
B. tensile stress
C. shear stress
D. any one of them
4 Tick the one which is not a crystalline solid:
A. Zirconia
B. Glass
C. Copper
D. Ceramic solid
5 When small number of atoms from some other suitable element is added to the semi-conductor material, then this process is known as
A. impurification
B. adding
C. doping
D. extrinsivity
6 Amorphous solids are also called as
A. crystalline solids
B. polymeric solids
C. glassy solids
D. any one of them
7 The curie temperature of iron is about
A. 250°C
B. 500°C
C. 750°C
D. 1000°C
8 Recent studies of ferromagnetism have shown that there exists in ferromagnetic substances small regions called
A. tiny regions
B. domains
C. vectors
D. none 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 The maximum stress that a material can withstand, is known as
A. plastic point
B. elastic limit
C. yield point
D. ultimate tensile strength

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