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

Question # 2

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

Question # 3

The vast majority of solids are in the form of

Question # 4

The bonding between the semi-conductor materials is

Question # 5

Amorphous solids are also called as

Question # 6

Which of the following can become a good permanent magnet

Question # 7

The molecules or ions in a crystalline solids are

Question # 8

Semi-conductor elements have atoms with

Question # 9

The transition from solid to liquid is actually from:

Question # 10

The arrangement or molecules or atoms in a crystalline solid can be studied by using:

Question # 11

The valence band of an atom in a solid

Question # 12

The bands below the valence band are

Question # 13

An ordinary glass gradually softens into a 'paste -like' state before it becomes a very viscous liquid. It happens almost at:

Question # 14

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

Question # 15

Arsenic, antimony and phosphorus are the elements from

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 The transition from solid state to liquid state is:
A. Abrupt
B. Slow
C. Continous
D. Discontinous
2 On heating, glass gradually softens into a paste like before it becomes a very viscous liquid at almost
A. 600°C
B. 7600°C
C. 800°C
D. 900°C
3 The results of mechanical tests are usually expressed in terms of
A. stress
B. strain
C. stress and strain
D. neither strees nor strain
4 The SI unit of strain is
A. N
B. Dynes
C. Pascal
D. Dimensionless
5 Amorphous solids are also called as
A. crystalline solids
B. polymeric solids
C. glassy solids
D. any one of them
6 The smallest three dimensional basic structure in a crystalline solid is called
A. lattice point
B. crystal lattice
C. cubic crystal
D. unit cell
7 A semi-conductor in its extremely pure form is known as
A. extrinsic semi-conductor
B. intrinsic semi-conductor
C. either of them
D. none of them
8 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
9 Which of the following can become a good permanent magnet
A. iron
B. steel
C. both of them
D. none of them
10 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

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