"A sphere of maximum volume is cut out from a solid hemisphere of radius `r`. The ra
Channel: Doubtnut
Date: 2020-04-05

"A 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:
(a) 3 : 2 (b) 4 : 1 (c) 4 : 3 (d) 7 : 4"