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Online Tests
Physics Fsc Part 2 Chapter 6 Online Test MCQs With Answers
Question # 1
A solid having regular arrangement of molecules throughout its structure is called.
Choose an answer
Amorphous solid
Polymeric solid
Crystalline solid
Glassy solid
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Question # 2
The number of crystal system are
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Three
Five
Seven
Fifteen
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Question # 3
The unit of strain is:
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Nm
Nm
-2
no unit
Nm
2
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Question # 4
Which type of impurity is to be added to a pure semi conductor crystal to provide holes.
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Monovalent
Trivalent
Tetravalent
Pentavalent
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Question # 5
The dimension of stress is
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[MLT
-1
]
[ML
-1
T]
[ML
-1
T
-1
]
[ML
-1
T
-2
]
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Question # 6
Natural rubber is an example of:
Choose an answer
Crystalline solids
Amorphous solids
Polymeric solids
None of above
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Question # 7
Soft magnetic material is
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Sodium
Steel
Iron
Copper
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Question # 8
Which one pair belongs to acceptor impurity.
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Aresincl, phosphorus
Boron, gallium
Arsenic, antimony
Antimony, indium
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Question # 9
A material which is insulator at 0 K and conduct at room temperature is.
Choose an answer
Silver
Lead
Germanium
Polythene
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Question # 10
Which of the modulus of elasticity is involved in compressing a rod to decrease its length ?
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Young's modulus
Bulk modulus
Modulus of elasticity
None of these
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Question # 11
A wire stretched to double of its length, its strain is:
Choose an answer
2
1
0
0.5
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Question # 12
The ability of a body to return to its original shape is called.
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Strain
Stress
Elasticity
Plasticity
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Question # 13
Semiconductors have conductivity of order:
Choose an answer
10
-8
to 10
-6
(Ωm)
-1
10
-6
to 10
-4
(Ωm)
-1
10
2
to 10
5
(Ωm)
-1
10
-5
to 10
-7
(Ωm)
-1
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Question # 14
Conductors have conductivities of order:
Choose an answer
10
3
(Ωm)-1
10
7
(Ωm)
-1
10
7
Ωm
-1
10
-6
Ω
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Question # 15
The critical temperature of Aluminum is.
Choose an answer
3.72 K
1.18 K
7.2 K
8.2 K
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Question # 16
Substance which break just after the elastic limit is reached are called as.
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Ductile substances
Hard substances
Britto substances
Soft substances
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Question # 17
Domains are existed in
Choose an answer
Ferromagnetic materials
Paramagnetic materials
Semi conductors
Diamagnetic materials
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Question # 18
There are different crystal systems. The number of these crystal system is.
Choose an answer
3
4
5
7
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