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The number of significant figures for th...

The number of significant figures for the three numbers 161 cm, 0.161 cm, 0.0161 cm are

A

3, 4 and 5 respectively

B

3, 4 and 4 respectively

C

3, 3 and 4 respectively

D

3, 3 and 3 respectively

Text Solution

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The correct Answer is:
D
We know that all non-zero digits are significant and the zeros at the beginning of a number are not significant. Therefore number 161 cm, 0.161 cm and 0.0161 cm have 3, 3 and 3 significant figures respectively.
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