In the adjacent figure, if the incline plane is smooth and the springs are identical, then the period of oscillation of this body is
In the adjacent figure, if the incline plane is smooth and the springs are identical, then the period of oscillation of this body is
- A
$2 \pi \sqrt{\frac{M}{2 k}}$
- B
$2 \pi \sqrt{\frac{2 M}{k}}$
- C
$2 \pi \sqrt{\frac{M}{k \sin \theta}}$
- D
$2 \pi \sqrt{\frac{M \sin \theta}{k}}$
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