One end of a helical spring is fixed while the other end carries the load W which moves with simple harmonic motion. The frequency of motion is given by (where $$\delta $$ = Deflection of the spring)

A. $$2\pi \sqrt {\frac{{\text{g}}}{\delta }} $$

B. $$\frac{1}{{2\pi }}\sqrt {\frac{{\text{g}}}{\delta }} $$

C. $$2\pi \sqrt {\frac{\delta }{{\text{g}}}} $$

D. $$\frac{1}{{2\pi }}\sqrt {\frac{\delta }{{\text{g}}}} $$

Answer: Option B