Question # 1

The molecules or ions in a crystalline solids are

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static

not static

randomly moving

all of them

The ratio of shearing stress/shearing strain is called as

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Modulus

Pascal modulus

Hooker's modulus

Shear modulus

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

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parallel

antiparallel

perpendicular

all of them

The critical temperature of mercury is

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1.18 K

4.2 K

3.72 K

7.2 K

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

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plastic limit

plastic deformation

proportional limit

elastic behaviour

The vast majority of solids are in the form of

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amorphous structure

polymeric structure

crystalline structure

all of them

The amplitude of oscillation of each atom in a metallic crystal rises with the

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rise in temperature

decrease in temperature

even temperature remains constant

all of them

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

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Crystal lattice

Amorphous solid

Polymeric solid

Polysterne

None of these

The force applied on unit area to produce any change in the shape, volume or length of a body is known as

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strain

elasticity

stretching

stress

In a cubic crystal, All solids meet at:

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60^o

90^o

109^o

30^o

10^o

Glass is an example of

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crystalline solid

amorphous solid

polymeric solid

none of them

Which of the following can become a good temporarily magnet

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iron

steel

both of them

none of them

The conduction band in a solid

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may be empty

cannot be empty

should be filed

all of them

The smallest three dimensional basic structure is called as:

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An atom

Unit cell

Crystal lattice

Polymer

None of these

The bonding between the semi-conductor materials is

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covalent

ionic

either of them

none of them

Examples of polymeric substances are:

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Plastic

Synthetic rubbers

Zirconia

All of these

Both (A) and (B)

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ECAT Physics Chapter 17 Physics of Solids Online Test MCQs With Answers

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