Answer : The correct option is, (b) joule
Explanation :
Derived unit : Derived units are derived from some basic units.
From the given options, option a, c and d are the basics units. While the option b is the derived unit.
The derived unit Joule is the unit of work which is derived as,
[tex]work=force\times displacement[/tex]
The unit of force is newton (N) and 1 N is equal to the [tex]1\text{ Kg }m/s^2[/tex]
The unit of displacement is meter (m).
Now by putting these units in above formula, we get the unit of work.
[tex]work=(1\text{ Kg }m/s^2)\times (m)=1\text{ Kg }m^2/s^2=Joule[/tex]
Hence, the derived unit is, joule.
