Home/
Competitive Exams/
JEE Main & Advanced/
Physics/
Errors and Measurements/
Question 30165
JEE Physics · Medium

Errors and Measurements: Sig Figs — JEE MCQ

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

Timer-based practiceDetailed answer reviewMobile-friendly flow
Sig Figs — JEEMediumQuestion 30165

Question

1.0 × 10⁻² has how many significant figures?
  1. A
    1
  2. B
    2
    Correct
  3. C
    3
  4. D
    4

Correct answer

2

Explanation

1.0 has 2 significant figures (the zero after the decimal is significant). The exponent doesn't count.

Review Errors and Measurements notesStart timed chapter practice