Which of the following is not a unit of time
Leap year
Micro second
Lunar month
Light year
The units of angular momentum are
What is unit ? What are fundamental unit and derived unit.
In $S = a + bt + c{t^2}$. $S$ is measured in metres and $t$ in seconds. The unit of $c$ is
What is unit system ? Write different types of system of units.
If the unit of length and force be increased four times, then the unit of energy is