which of the following is not an unit of Length?
micron
light year
angstrom
radian
$Erg - {m^{ - 1}}$ can be the unit of measure for
Why length, mass and time are chosen as base quantities in mechanics ?
The unit of Stefan's constant $\sigma $ is
The unit of length, velocity and force are doubled. Which of the following is the correct change in the other units?
The unit of Planck's constant is