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 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

Question # 2

The vast majority of solids are in the form of

Question # 3

The ability of the body to return to its original shape is called

Question # 4

The solids are classified as:

Question # 5

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

Question # 6

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

Question # 7

Which of the following can become a good permanent magnet

Question # 8

There is a regular arrangement of molecules in a

Question # 9

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

Question # 10

The domains are of macroscopic size of the order of

Question # 11

Polymers are the chemical combination of carbon with:

Question # 12

In the phenomenon of hysteresis

Question # 13

Each atom in a metal crystal vibrates about a fixed point with an amplitude that:

Question # 14

The pattern of crystalline solid is:

Question # 15

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

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 The temperature at which the vibrations become so great that structure of the Crystal breaks up, is called:
A. Critical temparature
B. Temperature of vaporization
C. Melting point
D. Both (A) and (C)
2 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
3 Arsenic, antimony and phosphorus are the elements from
A. third group
B. fourth group
C. fifth group
D. none of them
4 The units of modulus of elasticity are
A. Nm-2
B. Nm
C. ms-1
D. Pascal
5 The transition from solid to liquid is actually from:
A. Order to disorder
B. Disorder to order
C. Order to order
D. Disorder to disorder
6 The substance in which atoms cooperate with each other in such a way so as to exhibit a strong magnetic effect, are called
A. diamagnetic substances
B. ferromagnetic substances
C. paramagnetic substances
D. all of them
7 Examples of crystalline solids are:
A. Cooper
B. NaCl
C. Zirconia
D. Both (A) and (B)
8 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
A. diamagnetic substances
B. ferromagnetic substances
C. paramagnetic substances
D. all of them
9 The doped semi-conductor materials are known as
A. intrinsic semi-conductor
B. extrinsic semi-conductor
C. either of them
D. none of them
10 Whenever a covalent bond is broken in an intrinsic semi-conductor
A. hole is created
B. an electron is created
C. an electron-hole pair is generated
D. all of them

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