In C.G.S system the fundamental units of mass is
meter
kilogram
gram
quintal
The unit Second is defined as 1/86,400th of the
Mass of earth
Mean solar day
Year
leap year
The value of Least count is
1 cm
0 .01 cm
0.1 cm
0.001 cm
The unit of energy in SI system is
calorie
joule
bar
erg
In M.K.S system the fundamental unit of time is
Second
Minute
Hour
None of these
One mean solar day is equal to
86400 sec
8640 sec
864 sec
1/86400 sec
If we want to measure the thickness of a glass plate, which instrument is used?
Long tape
Vernier calipers
Meter scale
The accuracy of an instrument depends upon its
mass
volume
least count
thickness
Physical quantity = (numerical value) x ____________.
Length
Area
Unit
________________quantities can be expressed in terms of fundamental quantities.
Vector
Fundamental
Derived