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 valence band of an atom in a solid

Question # 2

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

Question # 3

Examples of crystalline solids are:

Question # 4

There are some whose resistivity becomes zero below a certain temperature, called

Question # 5

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

Question # 6

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

Question # 7

The vast majority of solids are in the form of

Question # 8

When a stress changes the shape, it is called the

Question # 9

The band above the valence band is called

Question # 10

A unit cell is smallest basic structure which is:

Question # 11

The transition from solid state to liquid state is:

Question # 12

The pattern of crystalline solid is:

Question # 13

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

Question # 14

Lead, copper and wrought iron are examples of

Question # 15

The cohesive forces between atoms, molecules or ions in crystalline solids maintain the strict

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 When a silicon crystal is doped with a pentavalent element, such an extrinsic semi-conductor is called
A. p-type semi-conductor
B. n-type semi-conductor
C. either of them
D. none of them
2 The solids which has structure in-between order and disorder are called
A. amorphous solids
B. polymeric solids
C. crystalline solids
D. all of them
3 When a silicon crystal is doped with a pentavalent element, then the atom of the pentavalent element is known as
A. acceptor
B. donor
C. either of them
D. none of them
4 The SI unit of strain is
A. N
B. Dynes
C. Pascal
D. Dimensionless
5 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)
6 The word amorphous means:
A. Without any structure
B. With definite structure
C. Regular arrangement of molecules
D. Both (B) and (C)
7 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
8 Tick the one which is not a crystalline solid:
A. Zirconia
B. Glass
C. Copper
D. Ceramic solid
9 The materials in which valence electrons are bound very tightly to their atoms and are not free, are known as
A. conductors
B. insulators
C. semi-conductors
D. all of them
10 Ferromagnetic substances lose their magnetism when heated above a certain temperature, known as
A. critical temperature
B. curie temperature
C. high temperature
D. fixed temperature

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