The unit of power is:

One astronomical unit is a distance equal to ...... $m$

$A$ physical quantity is measured and its value is found to be $nu$, where $n$ is the numerical value and $u$ is the unit. Then which of the following relations is true?

Temperature can be expressed as a derived quantity in terms of any of the following:

In an expression $a \times 10^{b}$:

Which of the following is a unit of energy?