Question

Define one metre, the S.I. unit of length. State its one multiple and one sub multiple.

Answer 1

Answer:

1 metre is defined as a distance travelled by light in air one over 299792458 of a second

multiple of M is km and submultiple of M is CM

Answer 2

Explanation:

Define one metre, the S.I. ... One metre is defined as the distance travelled by light in air in 12997924581 of a second. Multiple of metre = kilometre. Submultiple of metre = centimetre.