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

Which of the following can become a good permanent magnet

Question # 2

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

Question # 3

The electrons occupying the conduction band are known as

Question # 4

Polymeric solids have

Question # 5

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

Question # 6

The maximum stress that a material can withstand, is known as

Question # 7

Which of the following can become a good temporarily magnet

Question # 8

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

Question # 9

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

Question # 10

In the stress-strain graph, stress is increased linearly with strain until a point is reached, this point is known as

Question # 11

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

Question # 12

In case of the three dimensional deformation, when volume is involved, the ratio of applied stress to volumetric strain is called

Question # 13

The curie temperature of iron is about

Question # 14

Tick the one which is not a crystalline solid:

Question # 15

The band above the valence band is called

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 A structure of polymeric solid is:
A. An ordered structure
B. A disordered structure
C. Intermediate between order and disorder
D. Any of these
2 The force which maintain the strict long-range order between atoms of a crystalline solid is the:
A. Nuclear force
B. Cohesive force
C. Adhesive force
D. Coulomb force
3 Each atom in a metal crystal vibrates about a fixed point with an amplitude that:
A. Decrease the rise in temprature
B. Is not affected by rise in temprature
C. Increase with rise in temprature
D. Both (B) and (C)
4 Crystalline solids are in the form of:
A. Metals
B. Ionic Compounds
C. Ceramics
D. Both (A) and (B)
5 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
6 When a stress changes the shape, it is called the
A. compressional stress
B. tensile stress
C. shear stress
D. any one of them
7 The modulus of elasticity can be written as
A. stress x strain
B. strain/stress
C. 1/2 x stress x strain
D. stress/strain
8 The SI unit of stress is
A. N/m2
B. Nmc
C. dynes/m
D. N
9 The smallest three dimensional basic structure in a crystalline solid is called
A. lattice point
B. crystal lattice
C. cubic crystal
D. unit cell
10 Any superconductor with critical temperature above 77 K, is referred as
A. low temperature superconductor
B. high temperature superconductor
C. very low temperature superconductor
D. none of them

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