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

A structure of polymeric solid is:

Question # 2

The crystalline structure of NaCI is

Question # 3

When a stress changes the shape, it is called the

Question # 4

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

Question # 5

In crystalline solids, atoms are held about their equilibrium positions depending upon the strength of:

Question # 6

The transition from solid state to liquid state is:

Question # 7

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

Question # 8

The whole structure obtained by the repetition of unit cells is called:

Question # 9

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 # 10

The solids are classified as:

Question # 11

The bonding between the semi-conductor materials is

Question # 12

When relatively simple molecules are chemically combined into massive molecules, the reaction is called:

Question # 13

The magnetism produced by electrons within an atom can arise from

Question # 14

Above the curie temperature, iron becomes

Question # 15

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

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 The force applied on unit area to produce any change in the shape, volume or length of a body is known as
A. strain
B. elasticity
C. stretching
D. stress
2 The curie temperature of iron is about
A. 250°C
B. 500°C
C. 750°C
D. 1000°C
3 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
4 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
5 A unit cell is smallest basic structure which is:
A. One dimensional
B. Two dimensional
C. Three dimensional
D. Four dimensional
6 Arsenic, antimony and phosphorus are the elements from
A. third group
B. fourth group
C. fifth group
D. none of them
7 Glass and high carbon steel are the examples of
A. brittle substances
B. ductile substances
C. plastic substances
D. elastic substances
8 Substances which break just after the elastic limit is reached, are known as
A. brittle substances
B. ductile substances
C. plastic substances
D. elastic substances
9 The critical temperature of mercury is
A. 1.18 K
B. 4.2 K
C. 3.72 K
D. 7.2 K
10 Amorphous solids are also called as
A. crystalline solids
B. polymeric solids
C. glassy solids
D. any one of them

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