AIIMS 2019 Physics Elastic and Inelastic Collisions MCQ Question

In a perfectly inelastic collision, the fraction of kinetic energy lost by body A can be calculated using the formula $\text{Fraction of energy lost} = \frac{E_{\text{initial}} - E_{\text{final}}}{E_{\text{initial}}}$. For option C, the fraction of energy lost is $\frac{8}{9}$, indicating that body A retains only $\frac{1}{9}$ of its initial kinetic energy after the collision. Options A, B, and D do not accurately reflect the energy conservation principles and the specific calculations involved in inelastic collisions, leading to incorrect fractions of energy loss.