I0=10−10Wm−2\mathrm{I}_{0}=10^{-10} \mathrm{Wm}^{-2}I0=10−10Wm−2
I=10−11Wm−2\mathrm{I}=10^{-11} \mathrm{Wm}^{-2}I=10−11Wm−2
I0=10−12Wm−2\mathrm{I}_{0}=10^{-12} \mathrm{Wm}^{-2}I0=10−12Wm−2
I0=10−13Wm−2\mathrm{I}_{0}=10^{-13} \mathrm{Wm}^{-2}I0=10−13Wm−2
