PhysicsHard70×since 2002Q8595If a rubber ball falls from a height hhh and rebounds upto the height of h/2h / 2h/2. The percentage loss of total energy of the initial system as well as velocity ball before it strikes the ground, respectively, are :A50%,2gh50 \%, \sqrt{2 \mathrm{gh}}50%,2ghB50%,gh50 \%, \sqrt{\mathrm{gh}}50%,ghC50%, gh 250 \%, \sqrt{\frac{\text { gh }}{2}}50%,2 gh D40%,2gh40 \%, \sqrt{2 \mathrm{gh}}40%,2ghCheck answerSkip