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

The temperature at which the vibrations become so great that structure of the Crystal breaks up, is called:

Question # 2

Examples of polymeric substances are:

Question # 3

The bonding between the semi-conductor materials is

Question # 4

The valence band of an atom in a solid

Question # 5

The curie temperature of iron is about

Question # 6

Recently a complex crystalline structure known as Yetrium Barium Copper Oxide have been reported to become superconductor at

Question # 7

The solids are classified as:

Question # 8

Polymeric solids have

Question # 9

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

Question # 10

Semi-conductor elements have atoms with

Question # 11

When small number of atoms from some other suitable element is added to the semi-conductor material, then this process is known as

Question # 12

A structure of polymeric solid is:

Question # 13

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

Question # 14

Within each domain, the magnetic field of all the spinning electrons are

Question # 15

Which of the following can become a good permanent magnet

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 Tick the one which is not polymer solid:
A. Zirconia
B. Polythene
C. Nylon
D. Synthetic rubber
2 There is a regular arrangement of molecules in a
A. amorphous solids
B. polymeric solids
C. crystalline solids
D. none of them
3 The ratio of shearing stress/shearing strain is called as
A. Modulus
B. Pascal modulus
C. Hooker's modulus
D. Shear modulus
4 Under the elastic region, the deformation produced in the material, the deformation produced in the material will be
A. permanent
B. temporary
C. either of them
D. none of them
5 The substances in which, atom are so oriented that their fields support each other and the atoms behave like tiny magnets, are called
A. diamagnetic substances
B. ferromagnetic substances
C. paramagnetic substances
D. all of them
6 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
7 Arsenic, antimony and phosphorus are the elements from
A. third group
B. fourth group
C. fifth group
D. none of them
8 The SI unit of stress is
A. N/m2
B. Nmc
C. dynes/m
D. N
9 Amorphous solids are also called as
A. crystalline solids
B. polymeric solids
C. glassy solids
D. any one of them
10 The doped semi-conductor materials are known as
A. intrinsic semi-conductor
B. extrinsic semi-conductor
C. either of them
D. none of them

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