Question

How many significant figure are there in each of the following numbers?
(i) $8.007$
(ii) $6.022\times {10}^{23}$
(iii) $0.0043$
(iv) $\frac{22}{7}$

Answer 1

$8.007-4$ significant figure

$6.022\times {10}^{23}-4$ significant figure

$0.0043-2$ significant figure

$\frac{22}{7}=300\to 1$ significant figure