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Question 30155
JEE Physics · Medium

Errors and Measurements: Sig Figs — Calculation MCQ

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Sig Figs — CalculationMediumQuestion 30155

Question

Calculate: (3.0 × 10⁴) × (2.50 × 10²) and report with correct significant figures.
  1. A
    7.5 × 10⁶
    Correct
  2. B
    7.50 × 10⁶
  3. C
    7 × 10⁶
  4. D
    7.500 × 10⁶

Correct answer

7.5 × 10⁶

Explanation

3.0 has 2 sig figs (fewer), so the answer is 7.5 × 10⁶ (2 significant figures).

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