In a practical unit if the unit of mass becomes double and that of unit of time becomes half, then $8$ joule will be equal to .............. unit of work.
$6$
$4$
$1$
$10$
What is $1$ radian ? What is $1$ steradian ?
The unit of Planck's constant is
$Joule-second$ is the unit of
$Ampere - hour$ is a unit of
Which of the following is unitless quantity ?