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Give an example of(a) A physical quantity which has a unit but no dimensions. (b) A physical quantity which has neither unit nor dimensions. (c) A constant which has a unit. (d) A constant which has no unit. |
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Answer» (a) Angle or solid angle. (b) Relative density, etc. (c) Planck’s constant, universal gravitational constant, etc. (d) Reynold’s number. |
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