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Find the number of sphere of radius r...

Find the number of sphere of radius `r` touching the coordinate axes.

Text Solution

Verified by Experts

The correct Answer is:
`8`
Obviously one in each octant.
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Knowledge Check

  • The volume of a sphere of radius r/2 units is

    A
    `1/6 pir^3`cubic unit
    B
    `4/3 pir^3`cubic unit
    C
    `2/3 pir^3`cubic unit
    D
    `1/3 pir^3`cubic unit

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