An object of mass m is suspended at the end of a massless wire of length L and area of cross -section A. Young modulus of the material of the wire is Y. If the mass is pulled down slightly its frequency of oscillation along the vertical direction is :

Options

A. `f = 1/(2pi) sqrt((mL)/(YA))`
B. `f = 1/(2pi) sqrt((YA)/(mL))`
C. `f = 1/(2pi) sqrt((mA)/(YL))`
D. `f = 1/(2pi) sqrt((YL)/(mA))`