SSC MTS EXAM

Detailed explanation-1: -The metre, symbol m, is the SI unit of length. It is defined by taking the fixed numerical value of the speed of light in vacuum c to be 299 792 458 when expressed in the unit m s–1, where the second is defined in terms of the caesium frequency Cs.

Detailed explanation-2: -The basic units for length or distance measurements in the English system are the inch, foot, yard, and mile. Other units of length also include the rod, furlong, and chain.

Detailed explanation-3: -The SI base units of length, mass, and time are the meter (m), kilogram (kg), and second (s), respectively.