MCQ
Plane angle and solid angle have :
- ADimensions but no units
- BNo units and no dimensions
- CBoth units and dimensions
- ✓Units but no dimensions
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$\Delta\text{U}_1+\Delta\text{U}_2=0$
$\Delta\text{U}_1-\Delta\text{U}_2=0$
$\Delta\text{Q}-\Delta\text{W}=0$
$\Delta\text{Q}+\Delta\text{W}=0$