Which of the following is not a unit of time
Leap year
Micro second
Lunar month
Light year
The damping force on an oscillator is directly proportional to the velocity.The units of the constant of proportionality are
$Ampere - hour$ is a unit of
Match List $I$ with List $II$.
LIST $-I$ | LIST $-II$ |
$(A)$ Torque | $(I)$ $kg\,m ^{-1}\,s ^{-2}$ |
$(B)$ Energy density | $(II)$ $kg\,m\,s^{-1}$ |
$(C)$ Pressure gradient | $(III)$ $kg\,m ^{-2}\,s ^{-2}$ |
$(D)$ Impulse | $(IV)$ $kg\,m ^2\,s ^{-2}$ |
Choose the correct answer from the options given below
What is physical quantity ? Write its types.
Unit of magnetic moment is