Question

state the SI unit of solid angle.​

Answer 1

Answer:

The SI unit of solid angle is the steradian (sr). The solid angle of a complete sphere is 4π sr. The solid angle corresponding to the face of a cube measured at the centre is 2π/3 sr. One steradian is equal to (180/π)2 square degrees

Answer 2

Answer:

The steradian (symbol: sr) or square radian

Explanation:

The steradian, like the radian, is a dimensionless unit, the quotient of the area subtended and the square of its distance from the center.