MCQ
Given the numbers : $161\,cm, 0.161\,cm, 0.0161\, cm$. The number of significant figures for the three numbers are
- A$3, 4$ and $5$ respectively
- ✓$3, 3$ and $3$ respectively
- C$3, 3$ and $4$ respectively
- D$3, 4$ and $4$ respectively
✓
Answer
Correct option: B.
$3, 3$ and $3$ respectively
b
as all non-zero digits are significant and the zeros at the beginning of a number are not significant. the zeros trailing decimal point are not significant.
as all non-zero digits are significant and the zeros at the beginning of a number are not significant. the zeros trailing decimal point are not significant.
Therfore number $161 \,cm , 0.161 \, cm$ and $0.0161 \,cm$ have $3,3$ and $3$ significant figures respectively
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