Physical quantity = (numerical value) x ____________.
Length
Area
Unit
None of these
1 cm2 =
10-4 m2
104 mm
105 cm
10-5 m
In S.I system the fundamental unit of luminous intensity is
Ampere
Candela
Kelvin
Lux
To measure the mass of a small gold piece we use
Common balance
Vernier calipers
Screw gauge
Physical balance
The unit of energy in SI system is
calorie
joule
bar
erg
The ratio between the density of the substance and the density of water is
Surface density
Relative density
Density
Viscosity
________________quantities can be expressed in terms of fundamental quantities.
Vector
Fundamental
Derived
Units of Fundamental quantities are
Fundamental units
System units
Derived units
The ratio between mass and volume is called
Velocity
momentum
jerk
If we want to measure the thickness of a glass plate, which instrument is used?
Long tape
Meter scale
