For a particle performing uniform circular motion, choose the correct statement(s) from the following:
i) Magnitude of particle velocity (speed) remains constant.
ii) Particle velocity remains directed perpendicular to radius vector.
iii) Direction of acceleration keeps changing as particle moves.
iv) Angular momentum is constant in magnitude but direction keeps changing

Options

A. i and ii
B. i, ii and iv
C. i, ii and iii
D. ii and iii

Answer

C