The magnitude of the difference between mean value and each individual value is called _______.
true error
absolute error
error in reading
most probable error
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Significant figures depends upon the ______ of the measuring instrument.
number
readings
accuracy
length
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Thickness of the paper measured by micrometer screw gauge of least count 0.01 mm is 1.03 mm, the percentage error in the measurement of thickness of paper is…
1%
0.97%
0.8%
1.1%
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The physical quantity having the unit dyne g-1 is _______.
force
velocity
mass
acceleration
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Which of the following quantity is expressed as force per unit area?
work
pressure
density
volume
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The number of significant figures in 0.0009 is…
3
4
1
2
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Which of the following is NOT a dimensionless quantity?
angle
density
specific gravity
strain
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The SI unit of luminous intensity is _______.
watt
lux
candela
lumen
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The unit of plane angle is radian, hence its dimensions are
[M
1
L
-
1
T
0
]
[M
0
L
1
T
-
1
]
[M
0
L
0
T
0
]
[M
1
L
0
T
-
1
]
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In which of following system, scientific data can be exchanged between different parts of the world?
C.G.S.
M.K.S.
F.P.S.
S.I.
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