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प्रश्न
Define the term density.
उत्तर
The density of a substance is its mass per unit volume.
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संबंधित प्रश्न
Assuming the density of air to be 1.295 kg m-3, find the fall in barometric height in mm of Hg at a height of 107 m above the sea level. Take density of mercury = 13.6 × 103 kg m-3.
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Density in kg m-3 = ______ x density in g cm-3
