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Physics · PYQ NEET UG 2020

हिन्दी

Taking into account of the significant figures, what is the value of \( 9.99\text{ m} - 0.0099\text{ m} \)?

  1. \( 9.98\text{ m} \)
  2. \( 9.980\text{ m} \)
  3. \( 9.9\text{ m} \)
  4. \( 9.9801\text{ m} \)

Correct answer · Option 1

\( 9.98\text{ m} \)

Explanation

Subtracting gives \( 9.9801\text{ m} \). Rounding off to two decimal places (since \( 9.99 \) is precise to two decimal places) gives \( 9.98\text{ m} \).
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