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Online Tests
Ics Part 2 Physics Test Online MCQs With Answers
Question # 1
Eintein's Photoelectric equation is E
k
= hf -∅ in this equation E
1
, refers to:
Choose an answer
K.E of al the emited electrons
Mean K.E of emited electrons
Maximum K.E of emited electrons
Minimum K.E of emited electrons
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Question # 2
In A.C. inductor behaves as
Choose an answer
Capacitor
Resistor
Commutator
Transistor
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Question # 3
An atom can reside in excited state for
Choose an answer
10
-8
second
One second
10
-10
second
More than one second
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Question # 4
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 # 5
The Direction of induced current is always so as to oppose the change which causes the current, is:
Choose an answer
Faraday's law
Lenz's law
Ohm's law
Kirchhoff' s1ast rule
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Question # 6
Mass equivalent of 931 MeV energy is:
Choose an answer
6.02 x 10
-23
kg
1.766 x 10
-27
kg
2.67 x 10
-29
kg
6.02 x 10
-87
kg
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Question # 7
A capacitor is perfect in insulator for.
Choose an answer
Alternating current
Sparking current
Eddy current
Direct current
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Question # 8
Three resistors of resistance R each are combined in various ways, Which of the following cannot be obtained?
Choose an answer
3 RΩ
2R /4Ω
R/3Ω
2R /3Ω
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Question # 9
By increasing the temperature of conductor, the flow rate of charges.
Choose an answer
Increase
Remains constant
Decreases
Changes exponentially
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Question # 10
The minimum frequency needed to emit an electron form metal surface is called:
Choose an answer
Work function
Threshold frequency
Quanta frequency
All of above
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Question # 11
Photo diode detects.
Choose an answer
Visible light
Radio waves
X rays
All of them
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Question # 12
Antiparticle of electron is.
Choose an answer
proton
Photon
Positron
Neutron
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Question # 13
The conventional current is due to the flow of
Choose an answer
Atoms and molecules
Positive charge
Negative charge
Bot (b) and (c)
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Question # 14
Which diode works at reverse biasing.
Choose an answer
LED
Photo voltaic cell
Photo diode
Silicon diode
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Question # 15
The binding energy for_________ is maximum.
Choose an answer
Copper
Glass
Iron
Aluminum
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Question # 16
The potential difference across depletion region in case of Si is
Choose an answer
0.6 volt
0.9 volt
0.7 volt
0.2 volt
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Question # 17
In order to increase sensitivity of galvanometer the value of C may be
Choose an answer
Increase
Decrease
Neither increase nor decrease
Remain same
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Question # 18
The motional emf depends upon the
Choose an answer
Length of conductor
Speed of conductor
Strength of magnet
All of these
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