Question

Question 3(iii)
Express the number appearing in the following statements in standard form:
Size of bacteria is 0.0000005 m.

Answer 1

Size of bacteria is 0.0000005 m
$=0.0000005\times \frac{{10}^7}{{10}^7}=5\times {10}^{-7}m[\because a^{-m}=\frac{1}{a^m}]$