MCQ PracticeA sphere of maximum volume is cut out from a solid hemisphere of radius r. The ratio of the volume of the hemisphere to that of the cut out sphere is :Subject: MathematicsTopic: Volume And Surface AreaA3 : 2B4 : 1C4 : 3D7 : 4Correct Answer: BPractice QuizBack to MCQsRelated MCQsCurrent flows in a circuit whenEighttenths coulomb passes a point in 4 s. The current in amperes isThe unit of electrical charge is the