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Online Tests
Physics Fsc Part 2 Online Test MCQs With Answers
Question # 1
The name of the scientist who noted that a compass needle was deflected when placed near the current carrying conductor
Choose an answer
Henry
Faraday
Coloumb
Oersted
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Question # 2
Minimum number of semi conductor diodes required for full wave rectification are.
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1
2
3
4
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Question # 3
A photon while passing thorugh a magnetic field are deflected towards:
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North pole
South pole
Are ionized
None of these
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Question # 4
The activity of radioactive sample
Choose an answer
Is constant
Increases with time
Decreases linearly with time
Decreases exponentially with time
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Question # 5
Bremsstrahlung radiation are examples of
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Atomic spectra
Molecular spectra
Continuous spectra
Discrete spectra
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Question # 6
Resistance of choke is
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zero
Large
Very small
Infinite
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Question # 7
The Basic circuit element in a D.C. circuits which controls the current and voltage is
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Resistor
Inductor
Capisitor
Transistor
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Question # 8
Current passing through the coil of galvanometer
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CO/BAN
CoN /BA
NAB/CO
AN/BCO
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Question # 9
In photovoltaic cell, current is directly proportional to.
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Wavelength of light
Intensity of light
Energy
Frequency of light
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Question # 10
A capacitor is charged with a battery and then it is disconnected. A slab of dielectric is now inserted between the plates, Then
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The charge in the plates reduces and potencial difference increase
Potencial difference between the plates increase, stored energy decreases and charge remains the same
Potencial difference between the plates decreases, stored energy decreases and charge remains unchanged
None of them
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Question # 11
Which one is photo conductor.
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Copper
Selenium
Mercury
Aluminium
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Question # 12
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 # 13
Electron volt is the unit of.
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Potential
Potential difference
Electric current
Electric energy
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Question # 14
Platinum wire becomes yellow at a temperature of.
Choose an answer
900
o
C
1300
o
C
1600
o
C
500
o
C
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Question # 15
X-rays were discovered by
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Curie
Henry Becquerel
Rontgen
None of these
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Question # 16
1 rad =
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0.001Gy
0.01Gy
0.1Gy
1.01Gy
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Question # 17
If the kinetic energy of a free electron doubles, its de Broglie wavelength changes by the factor.
Choose an answer
√
2
1/
√
2
2
1/2
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Question # 18
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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