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State Si Units DimensionalState two constants, which have dimensions.MING OUESTIONS |
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Answer» Introduction to Units and DimensionsEvery measurement has TWO parts. The first is a number (N) and the next is a unit (u). Q = NU. For Example, the length of an object = 40 cm. The number expressing the magnitude of a physical quantity is INVERSELY proportional to the unit selected.If n1 and n2 are the numerical values of a physical quantity corresponding to the units u1 and u2, then n1u1 = n2u2. For Example, 2.8 m = 280 cm; 6.2 kg = 6200 g. |
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