ECAT Pre Engineering Physics Chapter 17 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 17 Physics of Solid

Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 17 Physics of Solid

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Physics ECAT Pre Engineering Chapter 17 Physics of Solid

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Question # 1

The neighbours of every molecule in crystalline solids are arranged in

Question # 2

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

Question # 3

The bands below the valence band are

Question # 4

The pattern of crystalline solid is:

Question # 5

The magnetism produced by electrons within an atom can arise from

Question # 6

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

Question # 7

The doped semi-conductor materials are known as

Question # 8

Ferromagnetic substances lose their magnetism when heated above a certain temperature, known as

Question # 9

In the doping process, the ratio of the doping atoms to the semi conductor atom is

Question # 10

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

Question # 11

Polymers are the chemical combination of carbon with:

Question # 12

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

Question # 13

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

Question # 14

Which of the following can become a good permanent magnet

Question # 15

Electrons of an isolated atom are bound to the nucleus, and

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 The results of mechanical tests are usually expressed in terms of
A. stress
B. strain
C. stress and strain
D. neither strees nor strain
2 Recently a complex crystalline structure known as Yetrium Barium Copper Oxide have been reported to become superconductor at
A. 125 K
B. 25 K
C. 263 K
D. 163 K
3 Each atom in a metal crystal vibrates about a fixed point with an amplitude that:
A. Decrease the rise in temprature
B. Is not affected by rise in temprature
C. Increase with rise in temprature
D. Both (B) and (C)
4 Glass and high carbon steel are the examples of
A. brittle substances
B. ductile substances
C. plastic substances
D. elastic substances
5 Arsenic, antimony and phosphorus are the elements from
A. third group
B. fourth group
C. fifth group
D. none of them
6 The vast majority of solids are in the form of
A. amorphous structure
B. polymeric structure
C. crystalline structure
D. all of them
7 In a semi-conductor material, current flows due to
A. positive charge
B. negative charge
C. both of them
D. none of them
8 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
9 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
10 Tick the one which is not a crystalline solid:
A. Zirconia
B. Glass
C. Copper
D. Ceramic solid

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