Question 2: What is system of units? In SI, what is meant by base, derived and supplementary units? Answer Definition of system of units A…

Question 3: (a) How many radians account for the circumference of a circle? (b) How many steradian account for the circumference (area) of a sphere?…

Question 2:What does a unit system mean? Give names of three different systems of units. In System International, explain what is meant by base unit?…