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A spherical shell of lead whose external...

A spherical shell of lead whose external and internal diameters are respectivel24 cm and 18 cm, is melted an recast into a right cirucular cylinder 37 cm hight. Find the diameter of the cylinder.

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The correct Answer is:
12 cm
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RS AGGARWAL-VOLUME AND SURFACE AREAS OF SOLIDS-Exercise 17B
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  2. A spherical ball of radius 3 cm is melted and recast into the spherica...

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  3. A spherical shell of lead whose external and internal diameters are re...

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  4. A hemisphere of lead of radius 9 cm is cast into a right circular cone...

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  5. A balll of diameter 21 cm is melted and recast into cubes, each of sid...

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  6. How many lead balls, each of radius 1 cm, can be made from a sphere of...

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  7. A solid sphere of radius 3 cm is melted and then cast into smaller sph...

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  8. The diameter of a sphere is 42 cm. It is melted and drawn into a cylin...

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  9. The diameter of a copper sphere is 18 cm. It is melted and drawn into ...

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  10. A hemispherical bowl of internal radius 9cm is full of water. Its c...

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  11. A hemispherical tank full of water is emptied by a pipe at the rate o...

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  12. The rain water from a roof of 44 m xx 20 m drains into a cylindrical t...

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  13. The rain water from a roof 22 m xx 20 m drains into a cylindrical vess...

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  14. A solid right circular cone of height 60 cm and radius 30 cm is dropp...

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  15. Water is flowing through a cylindrical pipe of internal diameter 2 cm,...

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  16. Water is flowing at the rate of 6km/hr through a pipe of diameter 14 c...

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  17. Water in a canal 5.4 m wide and 1.8 m deep is following with a speed ...

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  18. A farmer connects a pipe of internal diameter 25 cm from a canal into ...

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  19. Water running in a cylindrical pipe of inner diameter 7 cm, is collect...

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  20. 150 spherical marbles, each of diameter 14 cm, are dropped in a cylind...

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