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Question 30143
JEE Physics · Medium

Errors and Measurements: Sig Figs — Combined MCQ

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Sig Figs — CombinedMediumQuestion 30143

Question

The mass of a sphere is 4.237 g and its radius is 1.54 cm. Density = m/(4πr³/3). How many significant figures should the answer have?
  1. A
    2
  2. B
    3
    Correct
  3. C
    4
  4. D
    5

Correct answer

3

Explanation

The radius 1.54 cm has 3 significant figures — the fewest among the given data — so the final answer should have 3 significant figures.

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