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Online Tests
ECAT Pre General Science Physics Chapter 1 Measurements Online Test MCQs With Answers
Question # 1
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 # 2
0.0001210 has ____________ significant figures.
Choose an answer
Four
Three
Seven
Eight
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Question # 3
Physical quantities are often divided into ______ categories
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3
2
9
5
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Question # 4
The study of physics involves?
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Structure of space and time
Interaction of electromagnetic radiation with matter
Both of them
Chemical changes
None of them
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Question # 5
Computer chips are made from
Choose an answer
Conductors
Semiconductors
Insulators
Both A and B
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Question # 6
Astrophysics is a branch of physics, which deals with
Choose an answer
Sub-atomic
Stars and galaxies
Light and sound
Music
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Question # 7
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 # 8
The error may occur due to:
Choose an answer
Negligence
Faulty apparatus
Inappropriate method
all of these
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Question # 9
Which one is the least multiple:
Choose an answer
Pico
Femto
Nano
Atto
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Question # 10
Silicon can be obtained from:
Choose an answer
Lead
Uranium
An isotope of oxygen
Sand
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Question # 11
In the equation E=mc
2
value of c is?
Choose an answer
186000 miles per hour
186000 miles per sec
3 X 10
8
m/sec
Both A and C
Both B and C
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Question # 12
Significant figures in 0.0010 are:
Choose an answer
Four
Three
Two
One
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Question # 13
Particles have the mass smallest of following is:
Choose an answer
Electron
Proton
Neutron
Quark
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Question # 14
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 # 15
Which of the following are the units of intensity of light
Choose an answer
Pois
Lux
Siemen
Candela
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Question # 16
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 # 17
Light year is a unit of
Choose an answer
Time
Distance
Velocity
Intensity of light
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Question # 18
Dimension of mass is written as:
Choose an answer
M
[M]
(M)
[m]
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Question # 19
Silicon can be obtained from
Choose an answer
Lead
Uranium
An isotope of oxygen
Sand
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Next
Question # 20
Density is defined as:
Choose an answer
Mass per volume
Volume per mass
Mass x volume
Mass per length
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Question # 21
The mechanics, which deals with the objects moving with velocities approaching that of light is called
Choose an answer
Relativistic mechanics
Wave mechanics
Quantum mechanics
Statics
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Question # 22
Uncertainty is of following type/types:
Choose an answer
Absolute
Fractional
Percentage
All of these
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Question # 23
Physics details with the study of:
Choose an answer
Matter
Energy
Both of them
Human body
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Question # 24
Particles have the mass smallest of following is:
Choose an answer
Electron
Proton
Neutron
Quark
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Next
Question # 25
Astrophysics is a branch of physics, which deals with:
Choose an answer
Sub-atomic particles
Stars and galaxies
Light and sound
Music
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Question # 26
At the present time, the main frontiers of fundamental science are
Choose an answer
2
3
4
5
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Question # 27
The quantity having dimension of ML
2
T
02
will earth is:
Choose an answer
80 sec
500 sec
1.802 X 10
4
sec
Aerophysics
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Question # 28
Aerodynamics is a branch of:
Choose an answer
Hydrodynamics
Thermodynamics
Both of them
Statics
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Question # 29
1 gm-cm
-3
is equal to
Choose an answer
10
3
kg-m
-3
10
-3
kg-m
-3
1kg-m
-3
10
6
kg-m
-1
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Next
Question # 30
Light year is a unit of:
Choose an answer
Time
Distance
Velocity
Intensity of light
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Question # 31
The instrument used to gather information form the far side of the universe is
Choose an answer
Compound microscope
Radio telescope
Astronomical Telescope
Simple microscope
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