_________ Instrument is used to measure lengths accurately upto 1/10th of a millimetre.
Screw gauge
Pendulum
Vernier callipers
Spherometer
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 temperature is
Ampere
Candela
Kelvin
None of these
In S.I system the fundamental unit of current strength is
ampere
weber
decibel
Physical quantity = (numerical value) x ____________.
Length
Area
Unit
The ratio between the density of the substance and the density of water is
Surface density
Relative density
Density
Viscosity
Units of Fundamental quantities are
Fundamental units
System units
Derived units
________________quantities can be expressed in terms of fundamental quantities.
Vector
Fundamental
Derived
________________quantities are independent of one another and they cannot be expressed in terms of other simpler physical quantities.
The SI unit for force is
Pascal
Joule
Newton
Hertz