Physical Quantities and Measurements
The standard meter is defined as the distance which is travelled by light in 1/299 792 458 of a second through
vacuum
space
air
water
vacuum
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Quantities on basis of which other ones are expressed are calledA. derived quantities
B. physical quantities
C. base quantities
D. scalar quantities
The least count of the screw gauge is
A. 1 mm
B. 0.5 mm
C. 0.01 mm
D. 0.001 mm
10,000 m/sec is the speed of a
A. aero plane
B. rocket
C. satellite signal
D. car
By using prefixes, we can write 335 ร 10-8ย s as
A. 0.335 ยตs
B. 33.5 ยต
C. 335 ยตs
D. 3.35 ยตs
Kilo means in SI is one
A. thousand
B. hundred
C. ten
D. million
Non-zero digits are always
A. significant
B. non-significant
C. worthless
D. none of above
The unit of volume is
A. meter
B. meterยฒ
C. meterยณ
D. None of these
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