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Physics General Science Test Medium Mode MCQs With Answers
Question # 1
The charge carriers in electrolyte are positive and negative
Choose an answer
protons
electrons
ions
none of these
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Question # 2
A 100 W, 200 V bulb is connected to a 160 volts supply. The actual power consumption would be
Choose an answer
64 W
80 W
100 W
125 W
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Question # 3
Heating effect caused by an electric circuit is written
Choose an answer
H = I
2
Rt
H = I
2
R
H = IR
2
t
H = IR
2
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Question # 4
The waves produced in a microwave oven have wavelength.
Choose an answer
12 mm
12 cm
12 m
12 mm
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Question # 5
In and A.C. circuit, the current lags behind the emf. The power factor is 50% In order to make it 100%, What additional component is to be used?
Choose an answer
Impedance
Inductance
Capacitance
Resistance
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Question # 6
Nucleon means:
Choose an answer
Only electrons
Only neutrons
Only protons
Both (A ) and (C)
Both (B) and (C)
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Question # 7
When resistance of a current carrying wire increases due to rise in temperature, the drift velocity of electrons:
Choose an answer
Decreases
Increases
Remains the constant
Either of these
None of these
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Question # 8
Example of progressive wave is
Choose an answer
transverse waves
longitudinal waves
both of them
none of them
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Question # 9
1 gm-cm
-3
is equal to:
Choose an answer
10
3
kg-m
-3
10
-3
kg-m
-3
1 kg-m
-3
10
6
kg-m
-1
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Question # 10
The product of force and time is called change in:
Choose an answer
Momentum
Impulse
Force
Both a and b
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Question # 11
The SI unit of magnetic induction is
Choose an answer
Gauses
Tesla
Weber
Weber
2
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Question # 12
Which of the following is conserved when light waves interfere
Choose an answer
Intensity
Energy
Amplitude
Momentum
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Question # 13
The plane of polarization is rotated many degrees when a thickness of such crystal is
Choose an answer
One millimeter
Less than one millimeter
A few millimeter
None of these
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Question # 14
If the acceleration due to gravity at the earth's surface is 9.8 m/s
2
and the mass of the earth is 80 times that of moon and radius of earth 4 times that of moon,the value of G at the moos's surface will be:
Choose an answer
9.8 m/s
2
1.96 m/s
2
4.9 m/s
2
None of above
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Question # 15
Which type of fibre is used to send the signals of long distances?
Choose an answer
single mode step index fibre
multimode step index fibre
multimode graded index fibre
all of them
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Question # 16
The product of force and time of impact force is called
Choose an answer
Momentum
Impulsive force
Impulse
Rate of change of momentum
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Question # 17
Doping is the process in which the small amount of impurity is added into pure semiconductor lattice in the ratio
Choose an answer
1 to 10
3
1 to 10
4
1 to 10
5
1 to 10
6
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Question # 18
For the angle of projection of a projectile for which its maximum height and horizontal range are equal
Choose an answer
50°
45°
60°
76°
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Question # 19
Newtons law of motion defines
Choose an answer
Mass
Force
Acceleration
Speed
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Question # 20
Negative of vector can be made when
Choose an answer
Magnitude is made negative
Directions is reverse with negative magnitude
Only direction is changed
None of these
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Question # 21
In the stress-strain graph stress is increased linearly with strain until a point is reached this point is known as
Choose an answer
Plastic limit
Plastic deformation
Proportional limit
Elastic behaviour
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Question # 22
Conductors are those materials in which the free electrons
Choose an answer
Very large
Very small
Plenty of
None of these
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