Name any two physical quantities which have same dimensions. Can a quantity have unit but no dimension? Explain.
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Answer: Quantities having units, but no dimensions.
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Explanation:
Quantities having units, but no dimensions : Plane angle,angular displacement, solid angle. These physical quantities possess units but they does not possess dimensional formulas. B a physical quntatity neither having units nor dimensions are trigonometric ratios,strain , specific gravity etc.
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