Question

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?

Answer 1

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

(1) 1 Angstrom (Å) = 10^-10 m

(2) 1 kilometre (km) = 10³ m

(3) 1 light year (ly) = 9.46 × 10¹⁵ m