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Question 5026
NEET Physics · Medium

Units & Measurements: Significant Figures in Calculations MCQ

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Significant Figures in CalculationsMediumQuestion 5026

Question

The length and width of a rectangle are 5.7 cm and 3.4 cm respectively. Its area, with correct significant figures, is:
  1. A
    19.38 cm²
  2. B
    19.4 cm²
  3. C
    19 cm²
    Correct
  4. D
    20 cm²

Correct answer

19 cm²

Explanation

Area = 5.7 × 3.4 = 19.38 cm². Since both measurements have 2 significant figures, the result should be reported with 2 significant figures: 19 cm².

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