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Physics General Science Test Medium Mode MCQs With Answers
Question # 1
In a capacitive circuit
Choose an answer
Current leads voltage by phase of
π
/2
Voltage leads current by phase of
π
/2
Current and voltage are in same phase
Sometime current and sometime voltage leads
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Question # 2
The critical temperature of tin is
Choose an answer
1.18 K
4.2 K
3.72 K
7.2 K
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Question # 3
N s m
-2
is unit of:
Choose an answer
Drag force
Pressure
Surface tension
Coefficient of viscosity
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Question # 4
Alternating current can induce voltage because it has a
Choose an answer
High peak value
Varying magnetic field
Stronger field than direct curren
Constant magnetic field
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Question # 5
The time taken by light to travel from moon to earth is:
Choose an answer
80 sec
500 sec
1.802 X 10
4
sec
Aerophysics
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Question # 6
From sand, we get a material used for construction of computer chips. That material is called:
Choose an answer
Germanium
Silicon
Copper
Lead
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Question # 7
1 amu is equal to.
Choose an answer
1.66 x 10
-24
kg
1.66 x 10
-19
kg
1.66 x 10
-24
kg
1.66 x 10
-27
kg
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Question # 8
The number of isotopes of hydrogen are
Choose an answer
2
1
3
4
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Question # 9
Back emf is produced due to
Choose an answer
Self induction
Mutual induction
A.C
Lenz's law
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Question # 10
The expression F x t is called impulse if the time 't' is
Choose an answer
zero
very large
very small
infinite
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Question # 11
At low speeds, the drag force is
Choose an answer
proportional to speed
inversely proportional to speed
not simply proportional to speed
none of them
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Question # 12
Wavelength of light of frequency 100 Hz is
Choose an answer
2 x 10
6
m
3 x 10
6
m
4 x 10
6
m
5 x 10
6
m
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Question # 13
When the temperature difference between the source and the the sink increases, the efficiency of the heat engine will
Choose an answer
Increase
Decrease
Is not affected
May increase or decrease depending upon the nature of the working substance
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Question # 14
The typical speed of reconnaissance jet (SR-71) is
Choose an answer
900 ms
-1
950 ms
-1
980 ms
-1
990 ms
-1
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Question # 15
The ballistic missiles are useful for
Choose an answer
Short ranges
Long ranges
Medium ranges
None of these
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Question # 16
For a incompressible fluid its
Choose an answer
Density is constant
No internal friction is present
Velocity is constant
All of these
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Question # 17
Change in entropy is positive when heat is
Choose an answer
Removed
Added
Remains as is it
None of these
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Question # 18
The blood pressure of the person
Choose an answer
Decreases with age
Increases with age
Remains the same
None
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Question # 19
Why laser rays are used to measure long distance?
Choose an answer
Laser rays propagate in a straight
Laser rays are not absorbed
Laser rays are most coherent waves
Laser rays are high velocity waves
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Question # 20
Negative and positive charge in a hollow sphere are equal in the number then flux from the surface will be
Choose an answer
Zero
Positive
Negative
Flux will be both negative and positive
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Question # 21
Which of the following statements correctly describes the properties of two forces acting as a couple
Choose an answer
Equal, parallel and collinear
Unequal, anti-parallel and no-collinear
Unequal, anti-parallel and collinear
Equal, anti-parallel and non-collinear
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Question # 22
Viscosity of acetone at 30
o
C in NSm
-2
Choose an answer
0.198 × 10
-3
0.224 × 10
-3
0.295 × 10
-3
0.301 × 10
-3
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