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Question 30179
JEE Physics · Medium

Errors and Measurements: Sig Figs — Scientific Notation MCQ

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Sig Figs — Scientific NotationMediumQuestion 30179

Question

Write 0.00309 in scientific notation with correct significant figures:
  1. A
    3.09 × 10⁻³
    Correct
  2. B
    3.090 × 10⁻³
  3. C
    3.9 × 10⁻³
  4. D
    0.309 × 10⁻²

Correct answer

3.09 × 10⁻³

Explanation

0.00309 has 3 significant figures (3, 0, 9). In scientific notation: 3.09 × 10⁻³.

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