alleryThe unit of solid angle is defined using area over the radius:
ACubed
BHalved
CItself
DSquared
Answer & Solution
Correct answer: D. Squared
1. Plane angle uses arc length over radius.
2. Solid angle uses the intercepted area instead.
3. That area is divided by the square of the radius.
_Source: syllabus Physics Part I, Chapter 2, Units and Measurement._
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