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

Amorphous solids are also called as

Question # 2

The substances in which, atom are so oriented that their fields support each other and the atoms behave like tiny magnets, are called

Question # 3

The whole structure obtained by the repetition of unit cells is called:

Question # 4

The ratio of linear stress/linear strain is called as

Question # 5

The amplitude of oscillation of each atom in a metallic crystal rises with the

Question # 6

Whenever a covalent bond is broken in an intrinsic semi-conductor

Question # 7

In metallic crystals which of the following thing remains constant

Question # 8

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

Question # 9

The smallest three dimensional basic structure in a crystalline solid is called

Question # 10

The modulus of elasticity can be written as

Question # 11

The SI unit of strain is

Question # 12

Amorphous solids:

Question # 13

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

Question # 14

The band above the valence band is called

Question # 15

The solids which has structure in-between order and disorder are called

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 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
2 Zirconia is classified as:
A. Ceramic solid
B. Ionic compound
C. Metal
D. Either (A) or (B)
3 Amorphous solids:
A. Have definite melting points
B. Are called glassy solids
C. Have no definite melting point
D. Both (B) and (C)
4 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
5 Tick the one which is not polymer solid:
A. Zirconia
B. Polythene
C. Nylon
D. Synthetic rubber
6 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
7 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)
8 Polymeric solids have
A. low specific gravity
B. high specific gravity
C. either of them
D. none of them
9 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
10 In the doping process, the ratio of the doping atoms to the semi conductor atom is
A. 1 to 10
B. 1 to 103
C. 1 to 106
D. 1 to 109

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