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Physics · UNITS AND MEASUREMENT

हिन्दी

Each side of a cube is measured to be \( 7.203\text{ m} \). What are the total surface area and the volume of the cube to appropriate significant figures?

  1. Surface area = \( 311.3\text{ m}^2 \), Volume = \( 373.7\text{ m}^3 \)
  2. Surface area = \( 311\text{ m}^2 \), Volume = \( 373\text{ m}^3 \)
  3. Surface area = \( 311.299\text{ m}^2 \), Volume = \( 373.715\text{ m}^3 \)
  4. Surface area = \( 311.30\text{ m}^2 \), Volume = \( 373.71\text{ m}^3 \)

Correct answer · Option 1

Surface area = \( 311.3\text{ m}^2 \), Volume = \( 373.7\text{ m}^3 \)

Explanation

The measured length has 4 significant figures, so the calculated area and volume must be rounded off to 4 significant figures: Surface area = \( 311.3\text{ m}^2 \) and Volume = \( 373.7\text{ m}^3 \).
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