A particle performing uniform circular motion has angular frequency is doubled \& its kinetic energy halved, then the new angular momentum is (1) $\frac{\mathrm{L}}{4}$ (2) 2L (3) 4L (4) $\frac{\mathrm{L}}{2}$
A particle performing uniform circular motion has angular frequency is doubled \& its kinetic energy halved, then the new angular momentum is\\
(1) $\frac{\mathrm{L}}{4}$\\
(2) 2L\\
(3) 4L\\
(4) $\frac{\mathrm{L}}{2}$