Name the three convenient units used to measure length ranging from very short to very long value. How are they related to the S.I. unit ?

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Solution

Three convenient units of length and their relation with the S.I. unit of length:

1 Angstrom (Å) = 10^-10 m

1 kilometre (km) = 10³ m

1 light year (ly) = 9.46 × 10¹⁵ m

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