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

When a stress changes length, it is called the

Question # 2

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

Question # 3

The units of modulus of elasticity are

Question # 4

The electrons occupying the conduction band are known as

Question # 5

The size of the domain is such that they can contain

Question # 6

The bands below the valence band are

Question # 7

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

Question # 8

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

Question # 9

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

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

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

Question # 12

The SI unit of stress is

Question # 13

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

Question # 14

Electrons of an isolated atom are bound to the nucleus, and

Question # 15

The ability of the body to return to its original shape is called

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 There is a regular arrangement of molecules in a
A. amorphous solids
B. polymeric solids
C. crystalline solids
D. none of them
2 The electrons in the outermost shell of an atom are called
A. core electrons
B. valence electrons
C. high energy electrons
D. none of them
3 The ratio of shearing stress/shearing strain is called as
A. Modulus
B. Pascal modulus
C. Hooker's modulus
D. Shear modulus
4 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
5 Experiments revealed that the ratio of the stress to the strain is a constant value for
A. different material
B. all materials
C. a given material
D. all of them
6 Glass is an example of
A. crystalline solid
B. amorphous solid
C. polymeric solid
D. none of them
7 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)
8 The magnetism produced by electrons within an atom can arise from
A. electrons orbiting the nucleus
B. electrons posses a spin
C. both motions
D. none of these motions
9 The size of the domain is such that they can contain
A. 102to 104atoms
B. 104 to 108atoms
C. 108to 1012atoms
D. 1012to 1016atoms
10 In the phenomenon of hysteresis
A. magnetism leads the magnetising current
B. magnetism lags behind the magnetising current
C. meganetism goes along the magnetising current
D. none of them

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