Question

What is the significant figure of ?:

1. 100

2. 20

3. 0.100

4. 0.200

Answer 1

Rules for finding in no.of significant:


RULE #1 - All digits 1 through 9 are significant.


RULE #2 - Zero is significant when it is between two non-zero digits.

RULE #3 - Trailing zeros that are not used to hold the zero are not significant.


1.
no of significant figures in 100 is 1.

2.
no of significant figures in 20 is 1.

3.
no of significant figures in .100 is 3

4.
no of significant figures in .200 is 3.
n