Two springs of force constant $K$ and $2K$ are connected to a mass as shown below. The frequency of oscillation of the mass is
Two springs of force constant $K$ and $2K$ are connected to a mass as shown below. The frequency of oscillation of the mass is
- A
$\frac{{3K}}{M}$
- B
$\pi \,\sqrt {\frac{{6M}}{K}} $
- C
$\frac{1}{{2\pi }}\,\sqrt {\frac{{3K}}{M}} $
- D
$\frac{1}{\pi }\,\sqrt {\frac{K}{{6M}}} $
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