A laboratory report lists the density of a cooking oil sample as

PHYSICS · Single correct · CBSE · Physics · Units and Measurements · Units and Measurements

Problem

A laboratory report lists the density of a cooking oil sample as 0.92 kg/cm30.92\,\text{kg}\text{/}\text{cm}^{3}. Which statement best evaluates the unit used for this density value? (a) The unit is acceptable but the numeric value should be rewritten as 920 kg / m3920\,\text{kg}\,/\,\text{m}^{3} to match the converted volume unit. (b) The unit standard is satisfied because cm3\text{cm}^{3} is an SI-derived volume, so kg/cm3\text{kg}/\text{cm}^{3} is already fully SI. (c) The unit mixes a base-SI mass unit with a non-SI volume unit, so the volume should be converted to m3\text{m}^{3} to express the density in standard SI form. (d) The proper unit for a liquid of density less than 1 should be g/cm3\text{g}/\text{cm}^{3}, not kg/cm3\text{kg}/\text{cm}^{3}.

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