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Physics General Science Test Medium Mode MCQs With Answers
Question # 1
With the help of 50 K v electron microscope, a resolution of
Choose an answer
0.5 to 1 m to possible
1 m to 10 m is possible
0.5 to 1 nm is possible
1 to 10 nm is possible
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Question # 2
Which of the following has a great concentration of impurity
Choose an answer
base
emitter
collector
none of these
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Question # 3
In all natural processes where heat flows from one system to another, there is always a net
Choose an answer
decrease in entropy
increase in entropy
decrease or increase in entropy
none of them
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Question # 4
If R is gas constant for 1 gram mole, C
p
and C
v
are specific heat for a solid then
Choose an answer
C
p
- C
v
= R
C
p
- C
v < R
C
p
- C
v = 0
C
p
- C
v > R
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Question # 5
The bonding between the semi-conductor materials is
Choose an answer
covalent
ionic
either of them
none of them
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Question # 6
Tick the series which lie/s in. the infra-red region.
Choose an answer
Pfund series
Brackett series
Paschen series
All of these
None of these
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Question # 7
Most practical applications of electricity involve
Choose an answer
Charges at rest
Charges in motion
Electrons at rest
Atoms in motion
Molecules in motion
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Question # 8
Heat travels through vacuum by
Choose an answer
Conduction
Convection
Radiation
Both A and B
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Question # 9
The valence band of an atom in a solid
Choose an answer
is always empty
may or may not be empty
can never be empty
none of them
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Question # 10
A body starting from rest covers a distance of 0.45 Km and acquires a velocity of 300 Kmh
-1
. its acceleration will be
Choose an answer
7.71 m s
-2
0.5m s
-2
0.15m s
-2
0.092m s
-2
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Question # 11
Waves transport energy
Choose an answer
without transport energy
with matter
both of them
none of them
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Question # 12
The expression for the terminal velocity V
t
when mass of the droplet is considered is
Choose an answer
V
t
= 2grρ/9η
Vt = 4grρ/9η
V
t
= 4gr
2
ρ/9η
V
t
= 4gr
3
ρ/9η
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Question # 13
The irregular flown of fluid is called
Choose an answer
Normal flow
Streamline flow
Turbulent flow
None of these
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Question # 14
In a photocell, cesium coated oxidized silver emits electrons for :
Choose an answer
Visible light
Infrared light
Ultraviolet light
All of these
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Question # 15
If P is the pressure of gas than K.E per unit volume of gas is
Choose an answer
P/2
P
3/2 P
2P
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Question # 16
Moving photons posses:
Choose an answer
Energy
Momentum
Wavelength
All of these
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Question # 17
Acceleration produced in a body by a force varies
Choose an answer
inversely as the applied force
directly as the mass of the object
directly as the mass of the body
none of them
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Question # 18
Mathematically the vertical velocity component is
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Question # 19
The drag force increases as the speed of the object
Choose an answer
Decreases
Increases
Remains constant
None of these
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Question # 20
KWm
-2
is the unit of
Choose an answer
Power
Energy
Intensity
Energy per unit area
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Question # 21
The young s modulus for a perfect rigid body is
Choose an answer
Zero
1
Infinite
None of these
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Question # 22
The vector product of two non zero vectors is zero when
Choose an answer
They are parallel to each other
They are perpendicular to each other
They are equal vectors
They are inclined at angle of 60°
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