The accuracy of an instrument depends upon its
mass
volume
least count
thickness
In M.K.S system the fundamental unit of time is
Second
Minute
Hour
None of these
In S.I system the fundamental unit of luminous intensity is
Ampere
Candela
Kelvin
Lux
Units is reproducible and
Changeable
Displaced
Unchangeable
The value of Least count is
1 cm
0 .01 cm
0.1 cm
0.001 cm
In S.I system the fundamental unit of current strength is
ampere
weber
decibel
Units of Fundamental quantities are
Fundamental units
System units
Derived units
The space occupied by an object is called
Area
Volume
Magnitude
Density
The unit of energy in SI system is
calorie
joule
bar
erg
If we want to measure the length of a table we use
Long tape
Vernier calipers
Meter scale
