Question

The fundamental quantities in S.I. system is

1) plane angle and solid angle

2) mass and length

3) area and volume

4) speed and velocity

Answer 1

Correct option is 2) mass and length

Fundamental quantities in the S.I. system are the basic measurements that define physical properties and cannot be derived from other quantities. Mass (measured in kilograms) and length (measured in meters) are two of the seven fundamental quantities, serving as the foundation for measuring other derived quantities like area, volume, and density.