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

Tick the one which is not a crystalline solid:

Question # 2

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

Question # 3

Substances which break just after the elastic limit is reached, are known as

Question # 4

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

Question # 5

In the doping process, the ratio of the doping atoms to the semi conductor atom is

Question # 6

There is a regular arrangement of molecules in a

Question # 7

The temperature at which the vibrations become so great that structure of the Crystal breaks up, is called:

Question # 8

Amorphous solids:

Question # 9

If the stress increased beyond the elastic limit of the material. the deformation produced in the material will be

Question # 10

The units of modulus of elasticity are

Question # 11

The arrangement or molecules or atoms in a crystalline solid can be studied by using:

Question # 12

Which of the following theory completely explain the three types of materials

Question # 13

The critical temperature of tin is

Question # 14

The smallest three dimensional basic structure is called as:

Question # 15

In the phenomenon of hysteresis

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 Examples of polymeric substances are:
A. Plastic
B. Synthetic rubbers
C. Zirconia
D. All of these
2 Ferromagnetic substances lose their magnetism when heated above a certain temperature, known as
A. critical temperature
B. curie temperature
C. high temperature
D. fixed temperature
3 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
4 when the deformation produced in the material become permanent, this type of behaviour is called
A. proportionality
B. elasticity
C. plasticity
D. none of them
5 Recently a complex crystalline structure known as Yetrium Barium Copper Oxide have been reported to become superconductor at
A. 125 K
B. 25 K
C. 263 K
D. 163 K
6 Synthetic materials fall into the category of
A. crystalline solids
B. amorphous
C. polymeric solids
D. all of them
7 The word amorphous means:
A. Without any structure
B. With definite structure
C. Regular arrangement of molecules
D. Both (B) and (C)
8 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)
9 The number of different crystals systems based on the geometrical arrangement of their atoms and the resultant geometrical structure are
A. 5
B. 7
C. 9
D. 14
10 Which of the following can become a good permanent magnet
A. iron
B. steel
C. both of them
D. none of them

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