MCQ PracticeA hemisphere of lead of radius 6 cm is cast into a right circular cone of height 75 cm. The radius of the base of the cone is:Subject: MathematicsTopic: Volume And Surface AreaA1.4 cmB2 cmC2.4 cmD4.2 cmCorrect Answer: CPractice 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