Same chapter1 markDifficulty: Medium
If the radius of a sphere is doubled, its volume becomes:
Cylinder, Cone and Sphere
3 marksDifficulty: Medium
A cone, a hemisphere and a cylinder stand on equal bases and have the same height. Write the ratio of their volumes.
Original Khojo Papers practice question — not from a past board paper.
Answer
1 : 2 : 3
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
If the common radius is r then the equal height forces h = r. The volumes are (1/3)πr3, (2/3)πr3 and πr3, which are in the ratio 1 : 2 : 3.
Related questions
From the same topic and chapter, at a similar level.
Same chapter3 marksDifficulty: Medium
Find the volume of a sphere of radius 21 cm. Take π = 22/7.
Cylinder, Cone and Sphere
Same chapter3 marksDifficulty: Medium
A cone has radius 7 cm and height 24 cm. Find its slant height, its curved surface area and its volume. Take π = 22/7.
Cylinder, Cone and Sphere
Same chapter3 marksDifficulty: Medium
Find the curved surface area and the total surface area of a hemisphere of radius 7 cm. Take π = 22/7.
Cylinder, Cone and Sphere
Same chapter3 marksDifficulty: Medium
Find the total surface area of a cone of radius 7 cm and slant height 25 cm. Take π = 22/7.
Cylinder, Cone and Sphere
Same chapter1 markDifficulty: Medium
The curved surface area of a cone of radius r and slant height l is:
Cylinder, Cone and Sphere