A bar of mass $m$ is suspended horizontally on two vertical springs of spring constant $k$ and $3k$ . The bar bounces up and down while remaining horizontal. Find the time period of oscillation of the bar (Neglect mass of springs and friction everywhere).
A bar of mass $m$ is suspended horizontally on two vertical springs of spring constant $k$ and $3k$ . The bar bounces up and down while remaining horizontal. Find the time period of oscillation of the bar (Neglect mass of springs and friction everywhere).
- A
$2\pi \sqrt {\frac{m}{k}} $
- B
$2\pi \sqrt {\frac{m}{{3k}}} $
- C
$\pi \sqrt {\frac{{2m}}{{3k}}} $
- D
$2\pi \sqrt {\frac{{m}}{{4k}}} $
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