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Physics General Science Test Medium Mode MCQs With Answers
Question # 1
Self inducede e.m.f. is also called
Choose an answer
Motional e.m.f.
Thermistor
Electrostatic induction
Back e.m.f
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Question # 2
The SI unit of magnetic flux is
Choose an answer
NmA
-2
NmA
-1
NAm
-1
Nm
2
A
-1
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Question # 3
The shell closer to the nucleus is called:
Choose an answer
N shell
L shell
K shell
M shell
O shell
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Question # 4
If 'V' is the relativistic speed and 'C' is the speed of light then according to Einstien the factor V/C must always be
Choose an answer
Equal to 1
Less than 1
Greater than 1
Infinity
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Question # 5
The square of 0.4 is:
Choose an answer
Greater than 0.4
Smaller than 0.4
Equal to 0.4
None of them
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Question # 6
Solar cell converts sunlight directly into
Choose an answer
potential energy
thermal energy
mechanical energy
electrical energy
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Question # 7
Torque is also called:
Choose an answer
Momentum
Linear inertia
Moment of a force
Mass
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Question # 8
A process in which no heat enters or leaves the system is called
Choose an answer
isochoric process
isothermal process
adiabatic process
none of them
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Question # 9
If the radius of first orbit of hydrogen atom is 0.53
° A the radius of second orbit will be
Choose an answer
2.120
°A
0.212
°A
21.2
°A
0.14
°
a
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Question # 10
The density of blood is nearly equal to that of
Choose an answer
mercury
sodium
water
honey
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Question # 11
In a building, there are 15 bulbs of 40 watts, 5 bulbs of 100 watts, 5 fans of 80 watts and a heater of 1 kilowatt. The voltage of the electric main is 220 volts. The minimum efficiency of the main fuse of the building will be
Choose an answer
0.4 A
11.4 A
9.8 A
10.6 A
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Question # 12
Such a surface on which all the points have the same phase of vibration is known as
Choose an answer
wavefront
amplitude
displacement
all of them
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Question # 13
Polymeric solids have the structure
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One dimensional
Two dimensional
Zero dimension
Three dimensional
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Question # 14
The terminal velocity of a drop of water of radius 1 x 10
-3
m moving through air (Given that h = 19 x 10
-6
kgm
-1
s
-1
)
Choose an answer
114.6 ms
-1
114.6 kms
-1
11.46 ms
-1
1.146 ms
-1
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Question # 15
Two forces of magnitude 7 N and 5 N act on a particle at an angle θ to each other.θ can have any value.The minimum magnitude of the resultant force is
Choose an answer
12 N
8 N
2 N
5 N
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Question # 16
In the phenomenon of hysteresis, the magnetism and magnetizing current behaves as
Choose an answer
I lags
1 leads B
I & B becomes equal
None of these
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Question # 17
The conductivity of super conductor at critical temperature becomes
Choose an answer
Zero
1
Infinite
Negative
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Question # 18
A current which demagnetize the material completely is called
Choose an answer
Applied current
Coercive current
Maximum current
None of these
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Question # 19
The magnitude of displacement is
Choose an answer
Distance between the two points
Distance in a curved path
Shortest distance between two points
None of these
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Question # 20
Distance to nearest galaxy from earth is
Choose an answer
10
10
m
10
15
m
10
40
m
10
30
m
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Question # 21
When small number of atoms from some other suitable element is added to the semi-conductor material, then this process is known as
Choose an answer
impurification
adding
doping
extrinsivity
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Question # 22
The difference between two separated positions are given as X
1
= 10.5 ± 0.1 cm and X
2
= 26.8 ± 0.1 cm. What is their absolute uncertainty
Choose an answer
1.63 ± 0.1 cm
16.3 ± 0.2 cm
3 ± 0.1 cm
16.3 ± 0.05 cm
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