MCQ
The concept of solid angle is a natural extension of a angle to dimensions.
- Aplane, two
- Bline, three
- Cplane, three
- Dline, two
✓
Answer
- plane, three
Explanation:
The concept of solid angle is a natural extension of two-dimensional plane angle to three-dimensional. It is measured in terms of the unit called steradian, abbreviated as sr.
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