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

The SI unit of stress is

Question # 2

Examples of polymeric substances are:

Question # 3

The electrons in the outermost shell of an atom are called

Question # 4

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

Question # 5

Crystalline solids are in the form of:

Question # 6

The word amorphous means:

Question # 7

The electrons occupying the conduction band are known as

Question # 8

Arsenic, antimony and phosphorus are the elements from

Question # 9

The solids are classified as:

Question # 10

The magnetism produced by electrons within an atom can arise from

Question # 11

Semi-conductor elements have atoms with

Question # 12

Which of the following can become a good temporarily magnet

Question # 13

The critical temperature of tin is

Question # 14

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

Question # 15

Lead, copper and wrought iron are examples of

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 The pattern of NaCl particles have a shape which is :
A. Cubic
B. Body centred cubic
C. Simple cubic
D. face centred
2 The substances in which, atom are so oriented that their fields support each other and the atoms behave like tiny magnets, are called
A. diamagnetic substances
B. ferromagnetic substances
C. paramagnetic substances
D. all of them
3 The ratio of linear stress/linear strain is called as
A. Yong's modulus
B. Bulk modulus
C. Shear modulus
D. Modulus
4 Each atom in metal crystal:
A. Remains fixed
B. Vibrates about a fixed point
C. Moves randomly
D. Rotates about center of a crystal
5 The critical temperature of mercury is
A. 1.18 K
B. 4.2 K
C. 3.72 K
D. 7.2 K
6 The substance in which atoms cooperate with each other in such a way so as to exhibit a strong magnetic effect, are called
A. diamagnetic substances
B. ferromagnetic substances
C. paramagnetic substances
D. all of them
7 Synthetic materials fall into the category of
A. crystalline solids
B. amorphous
C. polymeric solids
D. all of them
8 The units of modulus of elasticity are
A. Nm-2
B. Nm
C. ms-1
D. Pascal
9 Polymeric solids have
A. low specific gravity
B. high specific gravity
C. either of them
D. none of them
10 The temperature at which the vibrations become so great that structure of the Crystal breaks up, is called:
A. Critical temparature
B. Temperature of vaporization
C. Melting point
D. Both (A) and (C)

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