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A uniform solid right circular cone of b...

A uniform solid right circular cone of base radius R is joined to a uniform solid hemisphere of radius R and of the same density, so as to have a common face. The centre of mass of the composite solid lies on the common face. The height of the cone is:

A

2r

B

`sqrt3r`

C

3 r

D

`sqrt6r`

Text Solution

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The correct Answer is:
B
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