ECAT Pre Computer Science Chapter 17 MCQ Test With Answer

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

Polymers are the chemical combination of carbon with:

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 smallest three dimensional basic structure is called as:

Question # 4

The electrons occupying the conduction band are known as

Question # 5

The substance in which atoms are so oriented that the field produced by spin and orbital motion of the electrons might add up to zero,are called

Question # 6

Arsenic, antimony and phosphorus are the elements from

Question # 7

Under the elastic region, the deformation produced in the material, the deformation produced in the material will be

Question # 8

When a stress changes length, it is called the

Question # 9

The curie temperature of iron is about

Question # 10

Every crystalline solid has

Question # 11

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

Question # 12

The crystalline structure of NaCI is

Question # 13

The SI unit of stress is

Question # 14

Experiments revealed that the ratio of the stress to the strain is a constant value for

Question # 15

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

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 Crystalline solids are in the form of:
A. Metals
B. Ionic Compounds
C. Ceramics
D. Both (A) and (B)
2 The doped semi-conductor materials are known as
A. intrinsic semi-conductor
B. extrinsic semi-conductor
C. either of them
D. none of them
3 The conduction band in a solid
A. may be empty
B. cannot be empty
C. should be filed
D. all of them
4 Arsenic, antimony and phosphorus are the elements from
A. third group
B. fourth group
C. fifth group
D. none of them
5 The units of modulus of elasticity are
A. Nm-2
B. Nm
C. ms-1
D. Pascal
6 The SI unit of stress is
A. N/m2
B. Nmc
C. dynes/m
D. N
7 The vast majority of solids are in the form of
A. amorphous structure
B. polymeric structure
C. crystalline structure
D. all of them
8 When a large number of atoms are brought close to one another to form a solid, each energy level of an isolated atom splits into sub-levels, called
A. energy bands
B. energy shells
C. states
D. all of them
9 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
10 When a stress changes length, it is called the
A. compressional stress
B. tensile stress
C. shear stress
D. any one of them

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