Advertisements
Advertisements
Question
Find the volume of a sphere whose radius is 0.63 m.
`["Assume "pi=22/7]`
Solution
Radius of sphere = 0.63 m
Volume of a sphere = `4/3pir^3`
= `[4/3xx22/7xx(0.63)^3]m^3`
= 1.0478 m3
Therefore, the volume of the sphere is 1.05 m3 (approximately).
APPEARS IN
RELATED QUESTIONS
Twenty seven solid iron spheres, each of radius r and surface area S are melted to form a sphere with surface area S'. Find the
- radius r' of the new sphere,
- ratio of S and S'.
A hemispherical tank has inner radius of 2.8 m. Find its capacity in litres.
If the radius of a sphere is doubled, what is the ratio of the volume of the first sphere to that of the second sphere?
A cylinder of radius 12 cm contains water to a depth of 20 cm. A spherical iron ball is dropped into the cylinder and thus the level of water is raised by 6.75 cm. Find the radius of the ball.
(Use 𝜋 = 22/7).
A measuring jar of internal diameter 10 cm is partially filled with water. Four equal spherical balls of diameter 2 cm each are dropped in it and they sink down in water completely. What will be the change in the level of water in the jar?
A cube of side 4 cm contains a sphere touching its side. Find the volume of the gap in between.
If the ratio of radii of two spheres is 4 : 7, find the ratio of their volumes.
The outer and the inner surface areas of a spherical copper shell are 576π cm2 and 324π cm2 respectively. Find the volume of the material required to make the shell
Find the maximum volume of a cone that can be carved out of a solid hemisphere of radius r units.
If a sphere is inscribed in a cube, then the ratio of the volume of the cube to the volume of the sphere will be 6 : π.