Plane angle and solid angle have (a) Units but no dimensions (b) Dimensions but no units (c) No units and no dimensions (d) Both units and dimensions

Answer: (a). Plane angle = (arc)/(radius), solid angle = (area)/(r²): both are ratios, so dimensionless. They still have units: radian and steradian. So the answer is (a) units but no dimensions.

Plane angle and solid angle have | NEET 2022 (Phase 1)

Q47NEET 2022 · PHASE 1Easy

Units & Dimensions

Plane angle and solid angle have

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Answer: (a)

Plane angle $= \frac{\text{arc}}{\text{radius}}$ , solid angle $= \frac{\text{area}}{r^2}$ : both are ratios, so dimensionless.
They still have units: radian and steradian.
So the answer is (a) units but no dimensions.

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