Question

1). 1fermi is equal to how many centimeters.

2).How many centimeter make a nano meter

3).1 k m square=-------------- hectare

4). 1cm square=--------------- hectares

5). 0.4 sq.cm is---------------- sq.km

Answer 1

$$\begin{gathered} 1fermi={10}^{-15}m \\ 1fermi={10}^{-13}cm \\ 1nanometer={10}^{-9}m \\ 1nanometer={10}^{-7}cm \\ 1hactare=10000m^2 \\ 1k{m}^2=100hactare \\ 1c{m}^2={10}^{-8}hactare \end{gathered}$$