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Online Tests
Ics Part 2 Physics Test Online MCQs With Answers
Question # 1
e/m=
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v/Br
Br/V
VB/r
Vr/B
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Question # 2
Which diode works at reverse biasing.
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LED
Photo voltaic cell
Photo diode
Silicon diode
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Question # 3
Which consumes small power.
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Inductor
Resistor
Motor
All of these
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Question # 4
X=A+B is the mathematical notation for.
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OR gate
NOR gate
NAND gate
AND gate
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Question # 5
The ratio of potential barriers of Ge to Si at room temperatrue is.
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7:3
1:3
2:5
3:7
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Question # 6
We can find from de Broglie formula
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Wavelength
Amplitude
Speed of wave
Frequency of wave
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Question # 7
Albert Einstein got noble prize in:
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1926
1921
1918
1931
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Question # 8
Thermistor with high - ve temperature coefficient are very accurate for measuring low temperature especially near is.
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10 kelvin
70 kelvin
200 kelvin
35 kelvin
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Question # 9
The charge of an alpha particle is equal to
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-e
+e
-2e
2e
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Question # 10
The temperature of core of nuclear reactor is:
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1100°C
1200°C
1300°C
1400°C
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Question # 11
If V
rms
be the root mean square value of emf then its peak to peak value is given by
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Question # 12
Which one of the following is not affected by electric or magnetic field.
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Beta rays
Gama ryas
Alpha rays
Electron
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Question # 13
Half life of radon gas is
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3.8 minutes
3.8 days
3.8 months
3.8 years
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Question # 14
Photo diode is used for detection of.
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Heat
Magnet
Current
Light
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Question # 15
Compton's effect is associated with
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gamma rays
Beta rays
X rays
Positive rays
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Question # 16
The Direction of induced current is always so as to oppose the change which causes the current, is:
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Faraday's law
Lenz's law
Ohm's law
Kirchhoff' s1ast rule
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Question # 17
The binding energy per nucleon is maximum for
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Helium
Iron
Potassium
Radium
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Question # 18
Calculate current in 2 2R /4Ω resistor.
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1 A
2R /4Ω
R/3Ω
2R /3Ω
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