• # question_answer A ring is suspended from its one end and oscillating then its time period for small oscillations will be :- A)  $2\pi \sqrt{\frac{R}{g}}$            B)  $2\pi \sqrt{\frac{2R}{g}}$C)  $2\pi \sqrt{\frac{R}{2g}}$          D)  $2\pi \sqrt{\frac{3R}{2g}}$

$T=2\pi \sqrt{\frac{\ell +\frac{{{K}^{2}}}{\ell }}{g}}$ Here $\ell =R,$$M{{K}^{2}}=M{{R}^{2}}\Rightarrow K=R$ $\Rightarrow$  $T=2\pi \sqrt{\frac{R+R}{g}}=2\pi \sqrt{\frac{2R}{g}}$