Among the following the correct statements (s) is / are (in case of uniform circular motion)

$\text{ In U.C.M, }\cdot =\text{ const }\Rightarrow \omega =\frac{v}{r}\text{ is constant }$

$\frac{2\pi }{T}=\frac{v}{r}\mathrm{isconstant}$

$\therefore \mathrm{T}=\text{ constant }$

(or)

In the case of uniform circular motion speed and angular velocity remains constant. But velocity and position vector changes continuously.