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

Question # 2

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

Question # 3

Glass is an example of

Question # 4

The transition from solid state to liquid state is:

Question # 5

Lead, copper and wrought iron are examples of

Question # 6

The smallest three dimensional basic structure is called as:

Question # 7

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

Question # 8

Glass and high carbon steel are the examples of

Question # 9

The SI unit of strain is

Question # 10

In a semi-conductor material, the total current is

Question # 11

The ratio of linear stress/linear strain is called as

Question # 12

Polymeric solids have

Question # 13

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

Question # 14

In a semi-conductor material, current flows due to

Question # 15

The curie temperature of iron is about

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 Glass is an example of
A. crystalline solid
B. amorphous solid
C. polymeric solid
D. none of them
2 In a semi-conductor material, the total current is
A. only the +ve current
B. only the electronic current
C. sum of +ve and electronic current
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 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
5 Amorphous solids are also called as
A. crystalline solids
B. polymeric solids
C. glassy solids
D. any one of them
6 The number of different crystals systems based on the geometrical arrangement of their atoms and the resultant geometrical structure are
A. 5
B. 7
C. 9
D. 14
7 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
8 There are some whose resistivity becomes zero below a certain temperature, called
A. absolute zero
B. 0°C
C. critical temperature
D. lower fixed point
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 a soft iron, domains are
A. easily oriented along external field and do not return to original random positions
B. easily oriented along external field and readily returns to originally random position
C. do no oriented along external field and also do not returns to originally random position
D. none of them

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