The SI (International System of units) unit of length is _____.
Show answer & explanation
Correct answer: A
Explanation
The correct option is option 1 i.e. metre.
| SI unit of length | The metre, symbol m, is the SI unit of length. |
| The metre or meter is the base unit of length in the International System of Units. | |
| The metre is defined as the length of the path travelled by light in a vacuum in of a second. |