A wheel initially at rest is subjected to a uniform angular acceleration about its axis. In the first 2 s  it rotates through an angle $$\theta_1$$. In the next 2 s it rotates through an angle $$\theta_2$$. Then ratio $$\frac{\theta_2}{\theta_1}$$ is :

A

$$6$$

B

$$3$$

C

$$4$$

D

$$\frac{1}{3}$$