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Ics Part 2 Physics Test Online MCQs With Answers
Question # 1
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 # 2
The number of protons in any atom are always equal to the number of
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Neutrons
Electrons
Positrons
Mesoris
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Question # 3
The radius of hydrogen atom is:
Choose an answer
0.53A°
0.053A°
0.53 x 10
-9
0.053 x10
-9
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Question # 4
Unit of Stephen's constant is
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W m K
-2
W m
-2
K
-4
W m K
-4
None
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Question # 5
The symbol of p-n-p transistor is
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Question # 6
The value of maximum output power is?
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E/4R
E
2
/4R
E/4R
2
Non of above
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Question # 7
A metal rod of 1 m is moving at a speed of 1 ms-1 in a direction making an angle 30
o
with 0.5 T magnetic field . The emf produced is.
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0.25 N
2.5 N
0.25 V
2.5 V
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Question # 8
Direct current can not flow through.
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Inductor
Resistor
Transistor
Capacitor
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Question # 9
Bremsstrahlung radiation are examples of
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Atomic spectra
Molecular spectra
Continuous spectra
Discrete spectra
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Question # 10
The Unit of decay constant.
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Second
(second)-1
m-1
mk
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Question # 11
LDR becomes necessary when op amp is used as a
Choose an answer
Night switch
Inverter
Comparator
Rectifier
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Question # 12
For step down transformer
Choose an answer
Ns>Np
Np > Ns
Ns = Np
Ns > > > Np
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Question # 13
The process by which lesser beam can be used to generate 3-dimensional images of objects is called
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Holography
Geo graphy
Tomography
Radio graphy
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Question # 14
In three phase A.C. generator the phase difference between each pair of coil is.
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45
o
90
o
120
o
60
o
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Question # 15
Number of electros emitted in photo electric effect depend upon.
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Intensity of incident light
Frequency of incident light
Energy of incident light
Wavelength of incident of light
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Question # 16
Which of the following series of hydrogen spectrum lies in ultra violet region.
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Lyman sereis
Paschen series
Balmar series
Bracket series
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Question # 17
The fact that electric field exist in space around an electrical charge is
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Electrical property
Gravitational property
Intrinsic property of nature
Extrinsic property of nature
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Question # 18
For normal use:
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Emitter base function is reversed biased
Collector base junction is reserved biased
Emitter base junction is forward biased
Both c and b
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