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On a smooth inclined plane, a body of ma...

On a smooth inclined plane, a body of mass M is attached between two springs. The other ends of the springs are fixed to firm supports. If each spring has force constant K , the period of oscillation of the body (assuming the springs as massless) is

A

1. `2pisqrt(M/(2k))`

B

2. `2pisqrt((2M)/(k))`

C

3. `2pisqrt((Mg sin theta)/(2k))`

D

4. `2pisqrt((2Mg)/k)`

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A
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