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Ics Part 2 Physics Test Online MCQs With Answers
Question # 1
NIBA =
Choose an answer
cθ
θ/c
c
2
θ
c
2
/θ
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Question # 2
The radio active nuclide
86
Ra
228
decays by a series of emissions of three alpha particles and one beta particle. The nuclide X finally formed is:
Choose an answer
64
X
220
86
X
222
84
X
216
88
X
215
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Question # 3
Charge carriers in electrolytes are.
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Protons
Electrons
Holes
Positive and Negative ions
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Question # 4
The SI Unit of magnetic induction is.
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Weber
Tesla
Gauss
Newton
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Question # 5
If 13.6 eV energy is required to ionize the hydrogen atom, then the required energy to remove an electron from n=2 is:
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10.2 eV
0 eV
3.4 eV
6.8 eV
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Question # 6
Semiconductors have conductivity of order:
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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 # 7
In according with Bohr's theory the K.E of the electron is equal to:
Choose an answer
ke
2
/2r
Ze
2
/r
Ze
2
/r
2
Ze
2
/2r
2
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Question # 8
The slope of q-t curve at any instant of time gives.
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Voltage
Current
Charge
Botha a and b
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Question # 9
When the medium is insulator the elecrostatic force between the charges is
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Decreased
Zero
Increased
None of above
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Question # 10
The word amorphous means:
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Regular structured
Without form or structure
Frozen structured
None of above
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Question # 11
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 # 12
the core of transformer is laminated so reduce.
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Magnetic loss
Hysteresis loss
Eddy current loss
Electric loss
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Question # 13
The SI unit of magnetic permeability is.
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WbA-1m-1
Wbm-2
WbmA-1
WbAm-1
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Question # 14
In modulation, low frequency signal is known as
Choose an answer
Carrier wave
fluctuated signal
Modulated carrier signal
Modulation signal
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Question # 15
Both xenon and caesium each have:
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41 isotopes
36 isotopes
43 isotopes
33 isotopes
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Question # 16
The rod of unit length is moving at 30 o through a magnetic field of 1 T. If the velocity of rod is 1 m/s, then induced emf in the rod will be given by
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I V
0.25 V
0.5 V
0.6 V
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Question # 17
Light emitting diodes are made from semiconductors.
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Silicon
Germanium
Carbon
Gallium arsenide
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Question # 18
B2/2p is the expression of.
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Lenz's law
Magnetic energy
Magnetic energy density
Back emf
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