In the figure, a block of mass m is rigi...

In the figure, a block of mass m is rigidly attached to two identical springs of stiffness k each. The other ends of the springs are connected to the fixed wall. When the block is in equilibrium, length of each spring is b, which is greater than the natural length of the spring. The time period of the oscillation of the block if it is displaced by small distance perpendicular to the length of the springs and released. Space is gravity free.

`2pisqrt((mb)/(k(b-1))`

`2pisqrt((mb)/((2k)(b-l)))`

`2pisqrt((m(b-l)/(kb))`

`2pisqrt((m(b-l)/(2kb))`

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