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A metallic sphere of radius 7 cm is melt...

A metallic sphere of radius 7 cm is melted and recast in to right circular cone of same radius. Find the height of the cone.

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The correct Answer is:
28 cm
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NAGEEN PRAKASHAN-VOLUME AND SURFACE AREA OF SOLIDS-Exercise
  1. The volume of a sphere is (4pi)/(3) cm^(3).Find the volume of that cub...

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  2. A cone of height 4 cm is melted and recast into a sphere of diameter 8...

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  3. A metallic sphere of radius 7 cm is melted and recast in to right circ...

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  4. The height and base radius of a metallic cone are 216 cm and 16 cm res...

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  5. The base diameter and height of a metallic cone are 24cm and 6cm respe...

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  6. (a) Three metallic spherical balls of radii 3 cm , 4cm and 5 cm are me...

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  7. (a) How many balls of radius 1 cm can be drawn by melting metallic sph...

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  8. (a) How many spherical balls of diameter 12 cm can be construct ed by ...

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  9. A metallic sphere of radus 4 cm and a metallic cone of base readius 3 ...

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  10. How many solid speherical balls of radus 3.5 cm can be recast by melt...

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  11. There is some water in a cylindrical vessel of radus 6 cm a sphere of ...

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  12. A solid metallic ball is dropped in a cylindrical vessel which has som...

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  13. (i) The radius of a metallic sphere is 3 cm .It melted and recast in t...

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  14. How many metallic cones of radius 3 cm and height 13.5 cm are required...

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  15. The inner radius of a hemispherical cup is 9 cm and it is completely ...

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  16. Two metallic cones of equal radii 2.1 cm and heights 4.1 cm and 4.3 cm...

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  17. Threee metallic cones of radius 2cm and height 9cm are melted and reca...

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  18. Threee metallic cones of radius 2cm and height 9 cm are melted and rec...

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  19. A metallic cone is melted and recast in to a cylinder of same radius a...

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  20. A cone of height 15 cm is melted and reacast in to cylinder of same ba...

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