JEE Physics · Hard

Errors and Measurements: Sig Figs — Trap MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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Sig Figs — TrapHardQuestion 30184

Question

10⁰ has how many significant figures?
  1. A
    0
  2. B
    1
  3. C
    Infinite
    Correct
  4. D
    Undefined

Correct answer

Infinite

Explanation

10⁰ = 1 exactly (a mathematical identity), so it has infinite significant figures — it is a pure number, not a measurement.