Question

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

Answer 1

Answer:

The metre is currently defined as the length of the path travelled by light in a vacuum in 1299 792 458 of a second. The metre was originally defined in 1793 as one ten-millionth of the distance from the equator to the North Pole along a great circle, so the Earth's circumference is approximately 40000 km.

SI units: 1000 mm; 0.001 km

Unit system: SI base unit

Answer 2

Answer:

$\huge { \colorbox{cyan}{ \colorbox{indigo}{Answer}}}$

The metre is currently defined as the length of the path travelled by light in a vacuum in 1299 792 458 of a second. The metre was originally defined in 1793 as one ten-millionth of the distance from the equator to the North Pole along a great circle, so the Earth's circumference is approximately 40000 km.

• Si units: 1000 mm; 0.001 km

• Unit system: SI base unit

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━