Question

1.4x10^(-7) has only

(a) two significant figure (b) three significant figure

(c) four significant figure (d) five significant figure​

Answer 1

Answer:

(a) two significant figures..

Step-by-step explanation:

According to rule

all the zeros to the right of the last non zero digit are significant.

Answer 2

Answer:

a - 2 significant figures

Step-by-step explanation:

the order of magnitude i.e 10^-7 doesnt count as significant figure

so the only digits left are 1.4 which are both non - zero

so there are 2 significant figures