"A solid metallic sphere of radius `r`is converted into a solid right circular cylinder
Channel: Doubtnut
Date: 12/04/2020

"A solid
 metallic sphere of radius `r`
is converted
 into a solid right circular cylinder of radius `R`
. If the
 height of the cylinder is twice the radius of the sphere, then
`R=r`
(b) `R=rsqrt(2/3)`
(c) `R=sqrt((2r)/3)`
(d) `R=(2r)/3`"