NCERT Exercise 3.21 - Motion in a Plane
Question: Read each statement below carefully and state, with reasons, if it is true or false: (a) A scalar quantity is always conserved in a process (b) A scalar quantity can never be negative (c) A scalar quantity is always dimensionless (d) The magnitude of a scalar is always positive or zero (e) Every scalar has a direction associated with it
Answer: (a) F, (b) F, (c) F, (d) T, (e) F.
Full step-by-step NCERT solution with diagrams on Something by Zero.