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Physics General Science Test Medium Mode MCQs With Answers
Question # 1
When a constant potential difference is applied across the conductor, the drift velocity of electrons:
Choose an answer
Increases
Decreases
Remains the constant
Either of these
None of these
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Question # 2
The magnitude of induced emf depends upon the:
Choose an answer
Rate of decrease of magnetic field
Rate of change of magnetic field
Rate of increase of magnetic flux
Constancy of magnetic field
None of these
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Question # 3
The electrode connected with the positive terminal of the current source is called
Choose an answer
cathode
anode
electrolyte
position
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Question # 4
In crystalline solids, atoms are held about their equilibrium positions depending upon the strength of:
Choose an answer
Adhesive force
Nuclear forces
Inter atomic cohesive force
Electromagnetic force
None of these
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Question # 5
Distance covered by a freely failing body n the first second of its motion will be:
Choose an answer
4.9 m
9.8 m
19.6 m
29.4 m
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Question # 6
At a given instant, a photon moves in +x direction in a region where there magnetic field in -z direction. The magnetic force on the proton will be the:
Choose an answer
-y direction
+y direction
+z direction
-z direction
None of these
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Question # 7
Wave length of that color as compared to that of violet color is:
Choose an answer
Smaller
Longer
Equal
None of these
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Question # 8
Direction of motion ______ in circular motion:
Choose an answer
Changes off and on
Changes continuously
Does not change
None of them
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Question # 9
Work is a:
Choose an answer
Scalar quantity
Vector quantity
Base quantity
None of these
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Question # 10
The value of current at resonance in series LCR circuit is affected by the value
Choose an answer
R only
C only
L only
R, C and L
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Question # 11
In an adiabatic expansion, the temperature of the gas
Choose an answer
increases
becomes zero
decreases
decreases rapidly
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Question # 12
Suppose the water flows out from a pipe at 3 kgs
-1
and its velocity changes from 5 ms
-1
to zero on striking the ball, then force is
Choose an answer
5.3 N
15 N
17.3 N
19.2 N
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Question # 13
220 cm
3
of water, when subjected to a stress of 100 atmosphere, becomes 219 cm
3
. Find the bulk modulus of water
Choose an answer
100 N m
-3
100 N m
-2
22000 N m
-3
22000 N m
-2
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Question # 14
Bats navigate and find food by:
Choose an answer
Ultrasonic
Echolocation
Refraction
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Question # 15
The dimensions of force are
Choose an answer
[MLT
-1
]
[M
o
LT
-2
]
[MLT
-2
]
[ML
0
T
-2
]
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Question # 16
A force applied on a body produces acceleration in
Choose an answer
Its opposite direction
Its own direction
Right angle to the force
None of these
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Question # 17
Time of flight of projectile is
Choose an answer
Vi sinθ /g
2Vi Sinθ /g
2Vi sinθ/g
None
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Question # 18
A non-conducting semiconductor diode is:
Choose an answer
Forward biased
Poorly biased
Reverse biased
None of them
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Question # 19
For maximum linear distance of travel, a projectile must be fired at an angle of
Choose an answer
0
°
45
°
90
°
60
°
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Question # 20
A typical rocket consumers fuel of about
Choose an answer
5000 Kgs
-1
10,00 Kgs
-1
10000 Kgs
-1
100000 Kgs
-1
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Question # 21
The ballistic missiles are useful for
Choose an answer
Short ranges
Long ranges
Medium ranges
None of these
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Question # 22
Ordinary light has components of vibration in
Choose an answer
One direction
Different direction
All directions
None of these
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