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 substance in which atoms cooperate with each other in such a way so as to exhibit a strong magnetic effect, are called

Question # 2

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

Question # 3

The bands below the valence band are

Question # 4

The conduction band in a solid

Question # 5

The critical temperature of tin is

Question # 6

A unit cell is smallest basic structure which is:

Question # 7

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

Question # 8

Amorphous solids are also called as

Question # 9

The doped semi-conductor materials are known as

Question # 10

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

Question # 11

Which of the following can become a good permanent magnet

Question # 12

In metallic crystals which of the following thing remains constant

Question # 13

The materials in which valence electrons are bound very tightly to their atoms and are not free, are known as

Question # 14

The smallest three dimensional basic structure is called as:

Question # 15

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

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 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
2 If the stress increased beyond the elastic limit of the material. the deformation produced in the material will be
A. permanent
B. temporary
C. either of them
D. none of them
3 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
4 The vast majority of solids are in the form of
A. amorphous structure
B. polymeric structure
C. crystalline structure
D. all of them
5 The solids are classified as:
A. Metals
B. Crystalline
C. Amorphous
D. Polymeric
6 The word amorphous means:
A. Without any structure
B. With definite structure
C. Regular arrangement of molecules
D. Both (B) and (C)
7 Substances which break just after the elastic limit is reached, are known as
A. brittle substances
B. ductile substances
C. plastic substances
D. elastic substances
8 Electrons of an isolated atom are bound to the nucleus, and
A. can only have distinct energy level
B. can only have same energy level
C. may or may not have distinct energy levels
D. none of these
9 The force which maintain the strict long-range order between atoms of a crystalline solid is the:
A. Nuclear force
B. Cohesive force
C. Adhesive force
D. Coulomb force
10 The modulus of elasticity can be written as
A. stress x strain
B. strain/stress
C. 1/2 x stress x strain
D. stress/strain

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