Question

No. Of significant figures in the no. 300

Answer 1

No. Of significant figures in the no. 300

is 3

3 , 0 , 0 are the significant figures

Answer 2

300 = 3 × 10²

300 has only one significant figure.

Rules for Determining the Number of Significant Figures -

• All the non zero numbers are included as significant figures.

• A zero becomes significant if it comes between two non zero numbers.

• If any notation is given in exponential form then the numerical portion is counted as the significant figure.

• A decimal can't change the number of significant figures.