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Online Tests
ECAT Pre General Science Physics Chapter 1 Measurements Online Test MCQs With Answers
Question # 1
If the absolute uncertainty of an instrument is 0.0a1 cm, then its least count will be :
Choose an answer
0.005 cm
0.01 cm
0.02 cm
0.001 cm
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Question # 2
Total number of base units are
Choose an answer
Three
Five
Seven
Nine
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Question # 3
Particles have the mass smallest of following is
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Electron
Proton
Neutron
Quark
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Question # 4
Silicon can be obtained from
Choose an answer
Lead
Uranium
An isotope of oxygen
Sand
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Question # 5
A dimension stands for the ___________ nature of certain physical quantity.
Choose an answer
super
Quantitative
Qualitative
Both B and C
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Question # 6
Physical quantities are often divided into ______ categories
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3
2
9
5
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Question # 7
The mechanics, which deals with the objects moving with velocities approaching that of light is called:
Choose an answer
Relativistic mechanics
Wave mechanic
Quantum mechanics
Statics
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Question # 8
Dimension of mass is written as:
Choose an answer
M
[M]
(M)
[m]
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Question # 9
Density is defined as:
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Mass per volume
Volume per mass
Mass x volume
Mass per length
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Question # 10
For multiplication and division purposes, percentage uncertainties are:
Choose an answer
Add
subtracted
Multiplied
Divided
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Question # 11
The body of physics involves
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Structure of space and time
Interaction of electromagnetic radiation with matter
Both of them
Chemical Changes
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Question # 12
Which one of the least multiple:
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Pico
Femto
Nano
Atto
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Question # 13
The branch of physics which deals with the structure and properties of solids is called:
Choose an answer
Plasma physics
Solid state physics
Any of above
Astrophysics
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Question # 14
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 # 15
The information from far side of the universe are gathered by
Choose an answer
Radio telescope
Microscope
Telescope
Spectro scpe
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Question # 16
Physics deals with the study of
Choose an answer
Matter
Energy
Both of them
Human Body
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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
Which quantity has different dimension?
Choose an answer
Tension
Work
Energy
Torque
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Question # 19
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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Question # 20
Addition of 2.189 kg, 11.8 kg and 5.32 kg gives the rounded off answer as:
Choose an answer
19.398
19.400
19.4
19.3
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Question # 21
The maximum possible error in the reading for a meter rod with least count 1 mm is:
Choose an answer
0.005 mm
0.05mm
0.5mm
5.0mm
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Question # 22
Which quantity has different dimensions:
Choose an answer
Work
Pressure
Energy
Torque
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Question # 23
dimensions are the same for:
Choose an answer
Work and energy
Force and weight
None of these
Both a and b
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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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Question # 25
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 # 26
Silicon can be obtained from:
Choose an answer
Lead
Uranium
An isotope of oxygen
Sand
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Question # 27
Which branch of physics deals with the structure and properties of solids
Choose an answer
Atomic Physics
Plasma Physics
Molecular Physics
Solid state physics
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Question # 28
Diameter of the nucleus s of the order of
Choose an answer
10
-10
m
10
-12
m
10
-15
m
10
-18
m
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Question # 29
Silicon can be obtained from
Choose an answer
Lead
Uranium
An isotope of oxygen
Sand
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Question # 30
At the present time, the main frontiers of fundamental science are
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2
3
4
5
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