The frequency of oscillation of a mass $$m$$ suspended by a spring is $$v_1$$. If the length of the spring is cut to half, the same mass oscillates with frequency $$v_2$$. The value of $$\frac{v_2}{v_1}$$ is __________.

A

1

B

2

C

$$\sqrt{2}$$

D

$$\sqrt{3}$$