2.6×10−5 cm2.6 \times 10^{-5} \mathrm{~cm}2.6×10−5 cm
2.6×10−8 cm2.6 \times 10^{-8} \mathrm{~cm}2.6×10−8 cm
2.6×10−7 cm2.6 \times 10^{-7} \mathrm{~cm}2.6×10−7 cm
None of theseNone \ of \ theseNone of these
