Question Text
Question 1 :
If the radius of a sphere is 2r, then its volume will be<br/>
Question 2 :
The radius of a hemispherical balloon increases from 6 cm to 12 cm as air is being pumped into it. The ratio of the surface areas of the balloon in the two cases is<br/>
Question 3 :
During the conversion of a solid from one shape to another, the volume of the new shape will<br/>
Question 4 :
In a cylinder, if the radius is halved and height is doubled then the volume will be<br/>
Question 5 :
If the radius of a hemisphere is 5 cm, then its volume is<br/>
Question 6 :
If the diameter of a sphere is 16 cm, then its surface area is<br/>
Question 7 :
In a cylinder, if the radius is doubled &nd height is halved then its curved surface area will be<br/>
Question 8 :
If the ratio of the diameters of the two spheres is 3 : 5, then the ratio of their surface areas is<br/>
Question 9 :
If a well of diameter 8 m has been dug to the depth of 14 m, then the volume of the earth dug out is<br/>
Question 10 :
The volumes of two spheres are in the ratio 64 : 27. The ratio of their surface areas is<br/>
Question 11 :
The shape of a gilli, in the the game of gilli- danda, is a combination of<br/> <img style='object-fit:contain' src="> (b) a cone and a cylinders<br/> (c) two cones and a cylinder<br/> (d) two cylinders and a cone<br/>
Question 12 :
If two solid hemisphere of same base radius r are joined together along with their bases, then the curved surface of this new solid is<br/>