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SI Supplementary Units SI Units

Quantity Name Symbol Equivalent Units
Plane Angle radian

rad

m m-1 = 1
Angular Velocity radian per second

rad/s

Angular Acceleration radian per second squared

rad/s2

Solid Angle steradian

sr

m2 m-2 = 1
Radiance watt per square metre steradian

W/(m2 sr)

Radiant Intensity watt per steradian

W/sr

Radiant Intensity watt per steradian

W/sr

Radiant Intensity watt per steradian

W/sr

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