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Physics · UNITS AND MEASUREMENT

हिन्दी

A substance of mass \( 5.74\text{ g} \) occupies a volume of \( 1.2\text{ cm}^3 \). Keeping the significant figures in view, its density should be expressed as:

  1. \( 4.783\text{ g cm}^{-3} \)
  2. \( 4.8\text{ g cm}^{-3} \)
  3. \( 5.0\text{ g cm}^{-3} \)
  4. \( 4.78\text{ g cm}^{-3} \)

Correct answer · Option 2

\( 4.8\text{ g cm}^{-3} \)

Explanation

Mass has 3 significant figures and volume has 2 significant figures. The result of division must be reported to the lowest number of significant figures, which is 2, giving \( 4.8\text{ g cm}^{-3} \).
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