Physics
Name two units of length which are bigger than a metre. How are they related to the metre?
Answer
The units of length which are bigger than a metre are —
- Astronomical Unit (A.U.) — One astronomical unit is equal to the mean distance between the earth and the sun. Relation between metre and astronomical unit is expressed as:
A.U. = 1.496 x 1011m - Light year (ly) — A light year is the distance travelled by light in vacuum, in one year. Relation between metre and light year is expressed as:
1 light year = 9.46 x 1015m
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