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Ics Part 2 Physics Chapter 6 Test Online MCQs With Answers
Question # 1
The substance which atom cooperates with each other in such a way so as to exhibit a strong magnetic field is called.
Choose an answer
Ferromagnetic
Paramagnetic
Diamagnetic
Non magnetic
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Question # 2
There are different crystal systems. The number of these crystal system is.
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3
4
5
7
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Question # 3
Curie temperature is
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Differen for chromium oxide and cobalt
Same for chromium oxide and cobalt
Same for iron and cobalt
None of these
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Question # 4
A wire stretched to double of its length, its strain is:
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2
1
0
0.5
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Question # 5
In glass, molecules are irregularly arranged so it is known as.
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Solid
Liquid
Solid liquid
Gas
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Question # 6
A cable breaks if stretched by more than 2mm. It is cut into two equal parts. How much either part can be stretched without breaking?
Choose an answer
25 m
1mm
2mm
0.5 m
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Question # 7
Yield stress is another name of
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Plasticity
Proportional limit
Elastic limit
Both (b) and (c)
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Question # 8
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 # 9
A material which is insulator at 0 K and conduct at room temperature is.
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Silver
Lead
Germanium
Polythene
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Question # 10
substance which undergo plastic deformation until they break are known as.
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Brittle substances
Ductile substance
Non magnetic substance
Magnetic substance
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Question # 11
Example of ductile substance is.
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Glass
Wood
Lead
Oxygen
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Question # 12
An ordinary glass gradually softness into a paste like state before it becomes a very viscous liquid which is possible at
Choose an answer
900
o
C
600
o
C
800
o
C
100
o
C
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Question # 13
The solids are classified as
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Polymeric
Amorphous
Crystalline
All of above
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Question # 14
A pentaralent impurity in Si
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a free electron and a free hole
a free hole
a free electron
No free particle
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Question # 15
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 # 16
A semiconductor in its extremely pure form is known as:
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Intrinsic
Extrinsic
Both a and b
None of above
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Question # 17
the substances in which the atoms do not form magnetic dipoles are called.
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Diamagnetic
Para magnetic
Ferro magnetic
Crystal
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Question # 18
Which one is pentavalent impurity
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Boron
Gallium
Antimony
Indium
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