[" Only Dne Option is Correct "],[" 1.The magnitude of displacement of a particle "],[" moving in a circle of radius a with constant "],[" angular speed "omega" varies with time "t" as "],[[" (a) "2a sin omega t],[" (b) "2a sin(omega t)/(2)],[" (c) "2a cos omega t],[" (d) "2a cos(omega t)/((omega t)/(2))]]