A block of mass M is placed on a smooth table. Its two sides are attached to fixed walls by means of collinear horizontal springs of spring constants `k_(1)` and `k_(2)(k_(1)gt k_(2))` as shown in the Figure. The block is made to oscillate horizontally along the line of the two springs.
The frequency of its oscillation is :

Options

A. `(1)/(2pi)((k_(1)+k_(2))/(M))^((1)/(2))`
B. `(1)/(2pi)((k_(1)-k_(2))/(M))^^((1)/(2))`
C. `(1)/(2pi)((M)/(k_(1)+k_(2)))^((1)/(2))`
D. `(1)/(2pi)((M)/(k_(1)-k_(2)))^((1)/(2))`.

Answer

A