A light hollow cube of side length \( 10 \, \text{cm} \) and mass \( 10 \, \text{g} \), is floating in water. It is pushed down and released to execute simple harmonic oscillations. The time period of oscillations is \( y \pi \times 10^{-2} \, \text{s} \), where the value of \( y \) is: (Acceleration due to gravity, \( g = 10 \, \text{m}/\text{s}^{2} \), density of water \( = 10^{3} \, \text{kg}/\text{m}^{3} \) )
