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In the given figure, a body of mass $M$ is held between two massless springs, on a smooth inclined plane. The free ends of the springs are attached to firm supports. If each spring has spring constant $k,$ the frequency of oscillation of given body is :
  • A$\frac{1}{2 \pi} \sqrt{\frac{ k }{2 M }}$
  • B$\frac{1}{2 \pi} \sqrt{\frac{2 k }{ Mg \sin \alpha}}$
  • C$\frac{1}{2 \pi} \sqrt{\frac{2 k }{ M }}$
  • D$\frac{1}{2 \pi} \sqrt{\frac{ k }{ Mg \sin \alpha}}$
JEE MAIN 2021, Diffcult
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