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NEET Physics · Medium

Units & Measurements: Significant Figures in Calculations MCQ

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Significant Figures in CalculationsMediumQuestion 5020

Question

A student measures the diameter of a wire as 0.056 cm using a screw gauge of least count 0.001 cm. The number of significant figures is:
  1. A
    5
  2. B
    4
  3. C
    3
  4. D
    2
    Correct

Correct answer

2

Explanation

0.056 cm: the two zeros after the decimal are not significant (leading zeros). Only 5 and 6 are significant giving 2 significant figures.

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