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

Examples of crystalline solids are:

Question # 2

Arsenic, antimony and phosphorus are the elements from

Question # 3

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

Question # 4

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

Question # 5

When a stress changes the shape, it is called the

Question # 6

Amorphous solids:

Question # 7

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

Question # 8

The units of modulus of elasticity are

Question # 9

The force applied on unit area to produce any change in the shape, volume or length of a body is known as

Question # 10

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

Question # 11

Which of the following can become a good temporarily magnet

Question # 12

The neighbours of every molecule in crystalline solids are arranged in

Question # 13

Any superconductor with critical temperature above 77 K, is referred as

Question # 14

Above the curie temperature, iron becomes

Question # 15

The critical temperature of aluminium is

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 The cohesive forces between atoms, molecules or ions in crystalline solids maintain the strict
A. short range order
B. long range order
C. both of them
D. none of them
2 The smallest three dimensional basic structure is called as:
A. An atom
B. Unit cell
C. Crystal lattice
D. Polymer
3 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
4 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
5 The results of mechanical tests are usually expressed in terms of
A. stress
B. strain
C. stress and strain
D. neither strees nor strain
6 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
7 The band above the valence band is called
A. high energy band
B. conduction band
C. empty band
D. none of them
8 In a semi-conductor material, current flows due to
A. positive charge
B. negative charge
C. both of them
D. none of them
9 There is a regular arrangement of molecules in a
A. amorphous solids
B. polymeric solids
C. crystalline solids
D. none of them
10 In case of the three dimensional deformation, when volume is involved, the ratio of applied stress to volumetric strain is called
A. Young's modulus
B. Bulk modulus
C. Shear modulus
D. all of them

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