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Among the following the least unit for length is
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The correct answer is:
fermi
1 parsec $=3.26 l y \cong 3.08 \times 10^{16} \mathrm{~m} ; 1$ nano meter $=1$ $\times 10^{-9} \mathrm{~m}$
1 fermi $=1 \times 10^{-15} \mathrm{~m}$ and 1 angstrom $=1 \times 10^{-10} \mathrm{~m}$ Therefore the least unit for length among the given is fermi.
1 fermi $=1 \times 10^{-15} \mathrm{~m}$ and 1 angstrom $=1 \times 10^{-10} \mathrm{~m}$ Therefore the least unit for length among the given is fermi.
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