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A solid metallic sphere of radius r is c...

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:

A

`R = r`

B

`R = (rsqrt2)/(sqrt3)`

C

`R = sqrt((2r)/(3))`

D

`R = (sqrt(3)r)/sqrt2`

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