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NEET PHYSICSEasy

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

Step-by-Step Solution

Plane angle = ArcRadius=[L][L]=[M0L0T0]\frac{\text{Arc}}{\text{Radius}} = \frac{[L]}{[L]} = [M^0L^0T^0]. Unit is Radian. Solid angle = Area(Radius)2=L2L2=[M0L0T0]\frac{\text{Area}}{(\text{Radius})^2} = \frac{L^2}{L^2} = [M^0L^0T^0]. Unit is Steradian. Both have units but no dimensions.

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