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 charged nucleus of an atom itself spins its magnetic field

Question # 2

Within each domain, the magnetic field of all the spinning electrons are

Question # 3

When a stress changes the shape, it is called the

Question # 4

Synthetic materials fall into the category of

Question # 5

Arsenic, antimony and phosphorus are the elements from

Question # 6

The pattern of NaCl particles have a shape which is :

Question # 7

Each atom in a metal crystal vibrates about a fixed point with an amplitude that:

Question # 8

The SI unit of strain is

Question # 9

An atom in which there is a resultant magnetic field, behaves like a tiny magnet and is called as

Question # 10

The pattern of crystalline solid is:

Question # 11

A unit cell is smallest basic structure which is:

Question # 12

The substance in which atoms cooperate with each other in such a way so as to exhibit a strong magnetic effect, are called

Question # 13

When a silicon crystal is doped with a pentavalent element, such an extrinsic semi-conductor is called

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 The bonding between the semi-conductor materials is
A. covalent
B. ionic
C. either of them
D. none of them
2 Examples of polymeric substances are:
A. Plastic
B. Synthetic rubbers
C. Zirconia
D. All of these
3 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
4 The pattern of NaCl particles have a shape which is :
A. Cubic
B. Body centred cubic
C. Simple cubic
D. face centred
5 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
6 In the stress-strain graph, stress is increased linearly with strain until a point is reached, this point is known as
A. plastic limit
B. plastic deformation
C. proportional limit
D. elastic behaviour
7 An atom in which there is a resultant magnetic field, behaves like a tiny magnet and is called as
A. magnetic
B. magnetic dipole
C. magnetic monopole
D. none of them
8 The smallest three dimensional basic structure in a crystalline solid is called
A. lattice point
B. crystal lattice
C. cubic crystal
D. unit cell
9 When a stress changes length, it is called the
A. compressional stress
B. tensile stress
C. shear stress
D. any one of them
10 An ordinary glass gradually softens into a 'paste -like' state before it becomes a very viscous liquid. It happens almost at:
A. 800oC
B. 500oC
C. 300oC
D. 100oC

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