Question

B. What do you mean by significant
figures? State the rules for deciding
significant figures.​

Answer 1

Answer:

The meaningful digits which are certainty called significant figure.

Explanation:

RULES.

(1) All non-zero digits are significant.

eg- 256.(has three significant figure)

(2) zeros preceding to first non-zero digits are not significant.

eg- 0.02(has one significant figure)

(3) zeroes b/w two non-zero digits are significant.

eg-2.004(has four significant figure)

(4) non-zero digits after zeroes are not significant.

eg-100(has one significant figure)

(5) counting numbers of objects are significant.

eg-5 balls,12 pencils.