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Physical Quantities and Measurements
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Physical Quantities and Measurements
Peter claimed that the diameter of a wire is 1.042 using Vernier calipers. Up to what extent he is right?
1 cm
1.0 cm
1.04 cm
1.042 cm
Author:
rikazzz
Comment
Physical Quantities and Measurements
A single system on which all scientists all over the world agree for units of measurement is called
SI units
International System of Units
both a and b
universal system
Author:
rikazzz
Comment
Physical Quantities and Measurements
The unit of volume is
meter
meter²
meter³
None of these
Author:
rikazzz
Comment
Physical Quantities and Measurements
Non-zero digits are always
significant
non-significant
worthless
none of above
Author:
rikazzz
Comment
Physical Quantities and Measurements
Kilo means in SI is one
thousand
hundred
ten
million
Author:
rikazzz
Comment
Physical Quantities and Measurements
By using prefixes, we can write 335 × 10
-8
 s as
0.335 µs
33.5 µ
335 µs
3.35 µs
Author:
rikazzz
Comment
Physical Quantities and Measurements
10,000 m/sec is the speed of a
aero plane
rocket
satellite signal
car
Author:
rikazzz
Comment
Physical Quantities and Measurements
The least count of the screw gauge is
1 mm
0.5 mm
0.01 mm
0.001 mm
Author:
rikazzz
Comment
Physical Quantities and Measurements
Quantities on basis of which other ones are expressed are called
derived quantities
physical quantities
base quantities
scalar quantities
Author:
rikazzz
Comment
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