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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$2\pi {\left( {\frac{m}{{2K}}} \right)^{1/2}}$
  • B$2\pi {\left( {\frac{{2M}}{K}} \right)^{1/2}}$
  • C$2\pi \frac{{Mg\sin \theta }}{{2K}}$
  • D$2\pi {\left( {\frac{{2Mg}}{K}} \right)^{1/2}}$
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