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Online Tests
Physics Fsc Part 2 Online Test MCQs With Answers
Question # 1
100 micro F capacitor is connects to an AC voltage 24 V and frequency 50 Hz. The reactance of the capacitor is.
Choose an answer
30.8 Ohm
31.8 Ohm
34.8 Ohm
40 Ohm
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Question # 2
In purely resistive A.C circuit, instantaneous value of voltage and current:
Choose an answer
Current lags behind voltage
Current leads voltage by π/2
Both are in Phase
Voltage leads current by Pase θ=π/2
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Question # 3
If speed of rotation of a generator is doubled the output voltage will be.
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Remain same
Double
Four time
One half
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Question # 4
The resistivity of --------------------decrease with the increase in temp
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Gold
Silver
Copper
Silicon
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Question # 5
A rheostat can operate as.
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Amplifier
Potential divider
Oscillator
Transformer
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Question # 6
For Holography we use
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X ray
Laser
gama rays
Beta rays
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Question # 7
The unit of Rh is.
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ms-1
m
m
2
m
-1
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Question # 8
The resistivity of two wires is
ρ
1
and
ρ
2
which are connected in series. If there dimentions are same then the equivalent resistivity of the combination will be:
Choose an answer
(
ρ
1
+
ρ
2
)
1/
ρ
1
+ 1/
ρ
2
ρ
1
+
ρ
2
/2
ρ
1/
ρ
2
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Question # 9
SI unit of reactance is.
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Ohm
Mho
Farad
Henry
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Question # 10
Absorbed Dose 'D' is defined as
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m/E
E/C
C/m
E/m
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Question # 11
Which is not characteristic of Laser.
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Monochromatic
Coherent
Intense
Multi direction
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Question # 12
To get N-Type the Ge is doped with
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Aluminium
Arsenic
Boron
Indium
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Question # 13
Hydrogen bomb is an example of.
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Nuclear fission
Nuclear fusion
Chain reaction
Chemical reaction
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Question # 14
The total flux through a closed surface.
Choose an answer
Directly proportional to shape and geometry
Independent of medium
Depend on shape and geometry
Dependent on medium and the charge enclosed
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Question # 15
If a charged body is moved against the electric field it will gain.
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P.E.
K.E.
Mechanical energy
Electrical potential energy
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Question # 16
The device which are required to convert various physical quantities into electric voltage are called.
Choose an answer
Filters
Rectifiers
Amplifiers
Sensors
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Question # 17
Which one is not a ductile material
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Lead
Steel
Copper
Wrought Iron
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Question # 18
An electromagnetic wave goes from air to glass which of the following does not change?
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Radio waves
X-rays
Ultra violet radiation
Ultra sond waves
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